Early age at first sexual intercourse and early pregnancy are risk factors for cervical cancer in developing countries

Causality between 22 personal traits and cervical cancer: a two-sample Mendelian randomization study

Previous research has indicated that certain personal traits are closely related to cervical cancer; however, owing to the limitations of observational studies, causality remains unclear. This pioneering study employs Mendelian Randomization (MR) analysis to explore the genetic links between personal traits and the risk of cervical cancer. We analyzed 22 personal traits and cervical cancer data from genome-wide association study (GWAS) databases. Utilizing instrumental variables identified from significant single nucleotide polymorphism (SNP) associations, we employed the Inverse Variance Weighted (IVW) method, along with the Weighted Median (WM) method and MR-Egger regression. A sensitivity analysis was conducted to confirm the robustness of the findings. Moreover, risk factor analyses were performed to explore potential mediators. Our results demonstrate positive causal relationships for smoking status (OR = 1.006, 95%CI 1.003-1.009, P < 0.001), smoking initiation (OR = 1.002, 95%CI 1.001-1.003, P = 0.02), past tobacco smoking (OR = 0.998, 95%CI 0.996-0.999, P = 0.023), age at first birth (OR = 0.999, 95%CI 0.998-0.999, P < 0.001), time spent watching television (OR = 1.005, 95%CI 1.002-1.007, P = 0.001), and duration of moderate to vigorous physical activity (OR = 0.997, 95%CI 0.995-0.999, P = 0.003). Smoking status, smoking initiation, and time spent watching television emerged as risk factors for cervical cancer, whereas past tobacco smoking, age at first birth, and duration of moderate to vigorous physical activity were identified as protective factors. No causal relationships were found between the remaining 16 personal traits and cervical cancer. This study establishes significant causal relationships between several personal traits and cervical cancer, providing valuable insights for cervical cancer prevention strategies and guiding future research directions. Moreover, it further explores the potential links between personal traits and cervical cancer.

Human papillomavirus (HPV) infection and liquid-based cytologic tests among cervical screening participants in Shannan City, Tibet, China, during 2021-2022

BACKGROUND

Cervical cancer is the most common malignant tumor of the reproductive tract in women and poses a serious threat to their health. Cervical cancer screening is primarily conducted through the detection of HPV or cytological examination. In this study, we analyzed the prevalence, genotyping of HPV, and cervical cytology among women in Shannan city, Tibet, China, between 2021 and 2022, to guide the prevention of cervical cancer among local women. This is the first large-scale cervical cytology screening study conducted in the southern region of the province.

METHODS

Between January 2021 and December 2022, 15,493 women participated in HPV genotype testing, and 16,775 women underwent ThinPrep cytologic tests. HPV prevalence and genotype distribution were analyzed for the entire population. Furthermore, the samples were stratified by age group and altitude to analyze the HPV infection rate and distribution of cervical cytological abnormalities.

RESULTS

The prevalence of HPV in Shannan city was 7.91%, with HPV16 and HPV18 affecting 1.21%. Single infections (95.92%) were more common than multiple infections (4.08%). The overall HPV infection rate peaked in the cohort < 25 years of age (13.25%). Furthermore, HPV infection rates and cervical cell abnormalities varied according to the administrative division in Shannan city, and this difference was attributed to various altitudes.

CONCLUSION

Among HPV carriers, the infection rate peaks in women aged 25 years, after which it declined annually, and the probability of coinfection is relatively low. Additionally, we found that high-altitude areas exhibited elevated HPV prevalence but fewer cervical abnormalities, suggesting complex environmental, genetic, and cultural influences on infection and disease progression. Based on these data, effective recommendations can be made for cervical cancer screening and HPV prevention in local communities.

Sarcopenia in gynaecological cancers

Gynaecological cancers (GCs) comprise a group of cancers that originate in the female reproductive organs. Each GC is unique, with different signs and symptoms, risk factors and therapeutic strategies. Worldwide, the majority of GCs are still associated with high mortality rates, especially ovarian, due to difficulty in early detection. Despite numerous studies on the underlying pathophysiology, research in the field of GCs poses unique scientific and technological challenges. These challenges require a concerted multi- and inter-disciplinary effort by the clinical, scientific and research communities to accelerate the advancement of prognostic, diagnostic, and therapeutic approaches. Sarcopenia is a multifactorial disease which leads to the systemic loss of skeletal muscle mass and function. It can be caused by malignancies, as well as due to malnutrition, physical inactivity, ageing and neuromuscular, inflammatory, and/or endocrine diseases. Anorexia and systemic inflammation can shift the metabolic balance of patients with cancer cachexia towards catabolism of skeletal muscle, and hence sarcopenia. Therefore, sarcopenia is considered as an indicator of poor general health status, as well as the possible indicator of advanced cancer. There is a growing body of evidence showing the prognostic significance of sarcopenia in various cancers, including GCs. This review will outline the clinical importance of sarcopenia in patients with GCs.

Risk of Cervical Carcinoma After Unfavorable Behavior and High Genetic Risk in the UK Biobank: A Prospective Nested Case-Control Study

Background: Previous studies have established a general understanding of the association between risky sexual behavior, genetic risk, and cervical carcinoma. However, these studies were conducted several years ago and lack systematic analysis using high-quality and population-based data. Methods: We conducted a prospective nested case-control study to identify risky behaviors and developed a behavior score. Combining the behavior score and genetic risk, we evaluated the effect of sexual and reproductive behavior and PRS on cervical carcinoma through the developed conditional logistic regression models. Results: We verified increased carcinoma risk in individuals with early sexual intercourse (OR: 1.41 [95% CI 1.09 to 1.83], p = 0.0083), non-monogamous sexual partners (OR: 3.13 [95% CI 2.15 to 4.57], p < 0.0001), three or more live births (OR: 1.44 [95% CI 1.12 to 1.84], p = 0.0040), and high PRS (polygenic risk score) (top 25% of PRS, OR: 1.58 [95% CI 1.15 to 2.16], p = 0.0044). The unfavorable sexual and reproductive behavior score we developed was linked to a 151% increased risk (OR: 2.51 [95% CI 1.79 to 3.52], p < 0.0001) after adjusting for PRS. Women with both unfavorable behavior and high genetic risk had a 5.5-fold increased cervical carcinoma risk (OR: 5.45 [95% CI 2.72 to 10.95], p < 0.0001) compared to individuals with favorable behavior and low genetic risk. Conclusions: Unfavorable sexual and reproductive behavior increases the risk of cervical carcinoma, especially in those with a high genetic risk. These findings encourage us to adhere to a healthy sexual and reproductive pattern.

Investigating the Mediating Role of Mental Disorders in the Relationship Between Early Sexual Intercourse and Intentional Self-Harm: A Two-Step and Multivariable Mendelian Randomization Study

BACKGROUND

Epidemiological studies have established an association between early sexual intercourse and intentional self-harm. However, the causal mechanisms, particularly the role of mental health disorders, remain elusive.

METHODS

In this Mendelian randomization (MR) study, we leveraged genome-wide association study data from multiple sources. Age at first sexual intercourse (AFSI) statistics were derived from the UK Biobank, encompassing up to 406,457 participants of European ancestry. Intentional self-harm (ISH) genome-wide association study (GWAS) data were obtained from the FinnGen Biobank, comprising 218,792 European-descent individuals. We investigated the causal relationship between AFSI and ISH and quantified the mediating effects of major depressive disorder (MDD; n = 173,005), schizophrenia (SCZ; n = 127,906), and attention deficit hyperactivity disorder (ADHD; n = 55,374). Both two-step and multivariable MR approaches were employed to estimate the mediation effects of these psychiatric disorders.

RESULTS

The F-statistics of all retained SNPs are over 10, indicating our study has no weak instrument bias. The odds ratio (OR) indicated that early sexual intercourse substantially increases the risk of ISH (IVW: OR = 0.60, 95% CI = 0.54-0.66, p < 0.05). Specifically, MDD was found to mediate 31% of this effect and SCZ 12%, collectively accounting for 46% of the total effect.

CONCLUSIONS

Early sexual intercourse is associated with an increased risk of intentional self-harm, potentially mediated by psychiatric disorders. These findings emphasize the need for mental health screening and early intervention in adolescents with early sexual debuts.

A meta-analysis of the association between adolescent pregnancy and the risk of gynecological cancers

OBJECTIVES

Despite several investigations, the association between adolescent pregnancy and gynecological cancers has yet to be conclusively established. To further explore this association, we conducted a meta-analysis of observational studies.

METHODS

We conducted a comprehensive search of databases such as PubMed, Web of Science, and Scopus to identify studies investigating the link between adolescent pregnancy and gynecologic cancers. This search continued until February 20, 2023. To assess the heterogeneity among the studies, we used the I2-statistics. We also explored the potential presence of publication bias using the Begg and Egger tests. The overall effect sizes were reported as either risk ratio or odds ratio, accompanied by a 95% confidence interval (CI), using a random-effects model.

RESULTS

From an initial pool of 25,436 studies, a total of 76 studies involving 13,991,683 participants met the predefined eligibility criteria. The analysis indicated that the overall effect size for individuals having their first pregnancy at age 20 or older, compared to those having it before age 20, was 0.54 (95% CI, 0.50 to 0.59) for cervical cancer, 0.82 (95% CI, 0.77 to 0.88) for ovarian cancer, and 0.96 (95% CI, 0.89 to 1.04) for uterine cancer.

CONCLUSIONS

Our findings suggest that experiencing one's initial pregnancy at the age of 20 or above is associated with a significantly reduced risk of cervical and ovarian cancer. However, no significant association was found between first pregnancy at this age and uterine cancer.

Association between oral contraceptives and cervical cancer: A retrospective case-control study based on the National Health and Nutrition Examination Survey

Background: Cervical cancer is the fourth most common cancer among females globally, with a high incidence and high mortality among females in developing countries. This retrospective case-control study aimed to investigate the association between oral contraceptives and cervical cancer, on which insufficient evidence still exists. Material and Methods: To examine the association between oral contraceptives and cervical cancer based on 7,496 females aged over 20 years from the National Health and Nutrition Examination Survey, multivariable logistic regression conducted from 1999 to 2016 was used. Results: Contraceptive use was positively associated with cervical cancer risk. In model 1 (unadjusted), a 195% increased risk of cervical cancer was observed among those who used oral contraceptives (odds ratio [OR] = 2.27, 95% confidence interval [CI] = 1.39-3.98, p = 0.002) compared to those who did not. In addition, the ORs for the exposed population were 1.74 (95% CI = 1.05-3.08, p = 0.041) and 1.93 (95% CI = 1.16-3.44, p = 0.017) in model 2 (adjusted for age, race, and body mass index [BMI]) and model 3 (adjusted for education level, ratio of family income to poverty, drinking status, smoking status, number of pregnancies, age at first sex, number of sexual partners, and whether to receive the human papillomavirus (HPV) vaccine in addition to model 2), respectively. Furthermore, subgroup analyses stratified by age, smoking status, BMI, age at first sex, number of sexual partners, and whether to receive the HPV vaccine also revealed that oral contraceptives were significantly associated with cervical cancer. Conclusion: This study demonstrated that oral contraceptive use increased the risk of cervical cancer. In addition, the higher risk, including individuals older than 45 years, having a high BMI (≥30 kg/m2), being current smokers, and having more than five sexual partners, may contribute to the development of cervical cancer.

Epidemiology of HPV-associated cancers past, present and future: towards prevention and elimination

Cervical cancer is the first cancer deemed amenable to elimination through prevention, and thus lessons from the epidemiology and prevention of this cancer type can provide information on strategies to manage other cancers. Infection with the human papillomavirus (HPV) causes virtually all cervical cancers, and an important proportion of oropharyngeal, anal and genital cancers. Whereas 20th century prevention efforts were dominated by cytology-based screening, the present and future of HPV-associated cancer prevention relies mostly on HPV vaccination and molecular screening tests. In this Review, we provide an overview of the epidemiology of HPV-associated cancers, their disease burden, how past and contemporary preventive interventions have shaped their incidence and mortality, and the potential for elimination. We particularly focus on the cofactors that could have the greatest effect on prevention efforts, such as parity and human immunodeficiency virus infection, as well as on social determinants of health. Given that the incidence of and mortality from HPV-associated cancers remain strongly associated with the socioeconomic status of individuals and the human development index of countries, elimination efforts are unlikely to succeed unless prevention efforts focus on health equity, with a commitment to both primary and secondary prevention.

The risk for subsequent primary lung cancer after cervical carcinoma: A quantitative analysis based on 864,627 cases

PURPOSE

To compare the risk of developing subsequent primary lung cancer among cervical cancer patients and the general population.

METHODS

Several databases were searched from inception to April 25, 2023. The standard incidence ratios (SIRs) with 95% confidence intervals (CIs) were combined to identify the risk for second primary lung cancer after cervical carcinoma. Subgroup analyses based on the follow-up period, age, degree of malignancy and source of SIR were conducted. All the statistical analyses were performed with STATA 15.0 software.

RESULTS

A total of 22 retrospective studies involving 864,627 participants were included. The pooled results demonstrated that cervical cancer patients had a significantly greater risk for lung cancer than did the general population (SIR = 2.63, 95% CI: 2.37-2.91, P<0.001). Furthermore, subgroup analyses stratified by follow-up period (<5 years and ≥5 years), age (≤50 years and <50 years), and degree of malignancy (invasive and in situ) also revealed an increased risk of developing lung cancer among cervical carcinoma patients.

CONCLUSION

Cervical cancer patients are more likely to develop subsequent primary lung cancer than the general population, regardless of age, follow-up time or degree of malignancy. However, more high-quality prospective studies are still needed to verify our findings.

Cervical human papillomavirus prevalence according to socioeconomic and demographic characteristics in a large Danish screening population

AIM

The aim of this study was to investigate high-risk human papillomavirus (hrHPV) prevalence according to socioeconomic and demographic characteristics in a Danish screening population.

METHODS

We used data from HPV SCREEN DENMARK, which was an implementation study embedded into the routine cervical cancer screening programme. During 2017-2020, women aged 30-59 years screened in the Region of Southern Denmark were offered HPV testing or cytology. In the HPV group, liquid-based cytology samples were tested for 14 hrHPV types. We obtained registry information on socioeconomic and demographic characteristics and used log-binomial regression to estimate the prevalence ratio (PR) of hrHPV in three age groups (30-39, 40-49, 50-59 years), adjusting for age and marital status.

RESULTS

We included 31,124 HPV unvaccinated women. In all age groups, the age-adjusted hrHPV prevalence was higher in women with basic versus higher education (e.g. age 30-39: 11.9% vs. 9.5%; PRage-adjusted=1.24; 95% confidence interval (CI): 1.02-1.50); women who were unemployed vs. employed (e.g. age 30-39: 11.6% vs. 10.4%; PRage-adjusted=1.11; 95% CI: 0.95-1.28); and in women with highest vs. lowest income (e.g. age 30-39: 11.6% vs. 9.5%, PRage-adjusted=1.18, 95% CI: 0.98-1.44). In models adjusted for marital status, these associations largely disappeared.

CONCLUSIONS

We found slightly higher hrHPV prevalences in women with basic education, low income and unemployment. The differences largely disappeared when taking into account marital status as a potential proxy for sexual behaviour. Our findings support a need for targeted information on safe sexual practices and promoting socioeconomic equality in HPV vaccination and cervical cancer screening participation.

Prevalence of cervical intraepithelial lesions and associated factors among women attending a cervical cancer clinic in Western Uganda; results based on Pap smear cytology

Introduction

There are high incidence and mortality rates of cervical cancer among females in East Africa. This is exacerbated by limited up-to-date data on premalignant lesions and associated factors in this setting. In this study, we determined the prevalence of cervical intraepithelial lesions and associated factors among women attending the Mbarara Regional Referral Hospital cervical cancer clinic in Southwestern Uganda.

Methods

In this cross-sectional study, 364 participants were recruited from among women attending the Mbarara Regional Referral Hospital cervical cancer clinic from 1 April to 30 June 2023. On consent, the study nurse collected demographic data and Pap smears, which were microscopically examined and reported by a laboratory scientist and a pathologist following the Bethesda grading system (2014). Statistical analyses were done in STATA version 17, using proportions, Chi-square, bivariate, and multivariate logistic regression analysis to determine associated factors at ⩽0.05 significance level.

Results

The mean age of participants was 41.9 years. A third of all study participants (37.6%, 132/351) were contraceptive users, mostly hormonal contraceptives (87.1%, 115/132). Almost 88% (307/351) had an unknown Human Papilloma Virus status. The prevalence of cervical intraepithelial lesions among our study participants was 6.6% (23/351), of which 73.9% (17/23) were low-grade squamous intraepithelial lesions. More than half (9/17, 52.9%) of low-grade squamous intraepithelial lesions were active hormonal contraceptive users. Use of hormonal contraceptives (OR: 3.032, p: 0.0253), use of intrauterine devices (OR: 6.284, p: 0.039), and any family history of cervical cancer (OR: 4.144, p: 0.049) were significantly associated with cervical intraepithelial lesions.

Conclusion

The prevalence of cervical intraepithelial lesions was 6.6%, lower than global estimates. Use of hormonal and intrauterine device contraceptives, as well as family history of cervical cancer, were significantly associated with cervical intraepithelial lesions among our study population. Prospective studies are recommended to further understand associations between different types of intrauterine devices and hormonal contraceptives, and cervical lesions.

The level of medical students' knowledge regarding the prevention of cervical cancer

Background

In Palestine, cervical cancer is the third most common gynaecological cancer, exhibiting higher mortality rates compared to regional counterparts. Late-stage diagnosis and limited awareness contribute to this disparity. This study aims to assess the awareness of Palestinian medical students regarding cervical cancer prevention.

Methods

A questionnaire-based survey involving 532 medical students from various Palestinian universities was conducted between October 2023 and December 2023. The survey encompassed closed-ended quantitative and demographic questions distributed through social media.

Results

The study was carried out on a group of 532 medical students (66.3% women and 33.6% men), (average age 21.7 years). Most students (77.7%) knew that the main risk factor for cervical cancer was human papillomavirus (HPV) infection. Participants doing the internship had the greatest knowledge, whereas students from the first year had the poorest knowledge about the main risk factors for cancer of the cervix. Only about half, 50.2% of all students, knew that in Palestine, there is no screening program. 84.4% of students correctly indicated that the cervical cancer screening test is a pap smear test. 41.4% of respondents knew that microscopic evaluation of the exfoliated cells from the vaginal part of the cervix is the screening test for cervical cancer which is used. Only about half of the students (45.1%) knew that there were no specific early symptoms of cervical cancer.

Conclusions

This study highlights the need for enhanced education, particularly regarding screening program awareness, among Palestinian medical students. Addressing these knowledge gaps is crucial for effective preventive strategies.

The risk of breast cancer and gynecologic malignancies after ovarian stimulation: Meta-analysis of cohort study

The effects of ovarian stimulation on breast and gynecological tumor incidence remain controversial. Therefore, the aim of this meta-analysis was to study the risk of cancer in ovarian stimulation. Of the 22713 studies initially identified, 28 were eligible for inclusion. The results revealed that the impact of ovarian cancer (RR = 1.33, [1.05; 1.69]) and cervical cancer (RR = 0.67, [0.46; 0.97]) is significant among the overall effects. In subgroup analysis, in the nulliparous population (RR = 0.81 [0.68; 0.96]) was the protective factor for the breast cancer. In the Caucasians subgroup (RR = 1.45, [1.12; 1.88]), the ovarian cancer incidence was statistically significant. In the Asian subgroup (RR = 1.51, [1.00; 2.28]), the endometrial cancer incidence was statistically significant. In the subgroup of Asians (RR = 0.55 [0.44; 0.68]) and the multiparous population (RR = 0.31, [0.21; 0.46]), them can be the statistically protective factor for the cervical cancer.

Utilization of cervical cancer screening and determinant factors among female nurses in selected public hospitals in Addis Ababa, Ethiopia

BACKGROUND

Cervical cancer is one of the top cause of death among childbearing women globally and public health issue for underdeveloped nations.It is the world's second most prevalent cancer among women. In 2018, 311,000 women died due to cervical cancer.Approximately 80 % of these deaths occurred in developing countries.However, there has been insufficient research on cervical cancer screening utilisation among Ethiopian nurses, despite the fact that nurses promote women's health and play a key role in cervical cancer education. As a result, evaluating utilization of cervical cancer screening among nurses is critical for program effectiveness.

OBJECTIVE

To assess the magnitude of utilization of cervical cancer screening and determinant factors among female Nurses in selected public hospitals in Addis Ababa, Ethiopia.

METHODOLOGY

An institutional-based cross-sectional study design was employed from October 1 to November 30, 2022. Data was collected using an interviewer-administered questionnaire. The data was entered into Epi data version 3.1 and then exported to SPSS version 22 for data management and analysis. Bivariate and multi-variable logistic regressions were employed to identify the predictor variables. Statistical significance was considered at P < 0.05 with adjusted odds ratio calculated at 95 % CI.

RESULT

The magnitude of utilization of cervical cancer screening among nurses working in selected public hospitals in Addis Ababa was 18.5 % (95 % CI: 14.2, 23.1). Having work experience > 8 years (AOR = 16.78; 95 % CI: 4.82, 58.44), history of STI (AOR = 53.72; 95 % CI: 14.18, 203.45) and having multiple sexual partners (AOR = 12.74; 95 % CI: 4.15, 39.11) were significantly associated with utilization of cervical cancer screening among female nurses.

CONCLUSION

The overall cervical cancer screening rate among female nurses was low compared to the WHO strategy for cervical cancer elimination, which asks for 70 % of women worldwide to be checked for cervical illnesses regularly by 2030. According to the study findings, respondents' work experience, STI history, and having multiple sexual partners influenced their utilization of cervical cancer screening among nurses. To boost the utilization of screening services, female nurses should place a strong emphasis on maintaining screening awareness through education and knowledge sharing.Finally, we recommend future researchers to do comparative study design to draw any scientific and credible conclusions.

Prevalence of human papillomavirus infection and associated factors among women attending cervical cancer screening in setting of Addis Ababa, Ethiopia

Human papillomaviruses (HPVs) are circular, nonenveloped small double-stranded DNA viruses that infect stratified epithelium and can cause a number of life-threatening diseases. HPV is the central risk factor for developing cervical cancer and is estimated that approximately 98% of this disease is associated with oncogenic types of HPV. HPV infection leads to an estimated 266,000 cervical cancer deaths annually. Therefore, the objective of this study was to determine the prevalence of HPV infection and risk factors associated with cervical lesion among women attending the cervical cancer screening clinic at the Ethiopian Family Guidance Association, Addis Ababa. A cross-sectional study was conducted to determine the prevalence of HPV infection. Data were collected using a questionnaire and samples leftover from cervical screening were taken. The leftover swab was air dried and DNA was extracted and amplified by using a PCR. A total of 247 women were included in the study. The prevalence of HPV was 9.72% among the population studied. Of all participants, 27.13% were positive for cervical intraepithelial neoplasia-1 (CIN1). CIN1 positivity was found in half of HPV positive women. Among HPV positive women, half of them had started sexual intercourse at ages 12-17 years and 41.66% were women who gave birth at ages 12-17 years. The high prevalence of HPV and the CIN1 positive group were ages 36-57 and women with multiple sexual partners. The other groups with the highest CIN1 positive were 22.39% grade (9-12) and 20.9% primary (1-8) and uneducated women. Among HPV positive women, 83.33% had an abortion history and 80% miscarried in the first trimester. Among the CIN1 positives, 53.73% had more than two sexual partners. Among HPV positive women, half of them were users of contraception methods. In conclusion, the highest prevalence of HPV is among women who began sexual intercourse earlier and who gave birth at 12-17 years of age, have an abortion history, with MSP and oral contraceptive methods users. In addition to HPV, early pregnancy and sexual intercourse at 12-17 years of age, abortion, MSP, and oral hormonal contraceptives are factors in cervical cancer. Finally, most women do not have enough knowledge and awareness about cervical cancer and the risk factor.

Causal effect of age first had sexual intercourse and lifetime number of sexual partners on cervical cancer

Objective

In this study, we aimed to investigate whether age first had sexual intercourse (AFSI) and lifetime number of sexual partners (LNSP) have a direct causal effect on cervical cancer by Mendelian randomization (MR) analysis.

Methods

Four approaches were used for MR Analysis, including MR-Egger, weighted method, weighted median, and inverse variance weighted (IVW). MR Pleiotropy RESidual Sum and Outlier (MR-PRESSO) as well as MR-Egger regression analysis were conducted to detect whether there was pleiotropy between IVs and outcome, and the outlier SNPs can be detected by MR-PRESSO. The presence or absence of heterogeneity among IVs was suggested according to Cochran's Q statistic. Leave-one-out sensitivity analysis was performed to identify and remove SNPs which could independently change the results. We corrected the results using Bonferroni correction.

Results

From the results of IVW, AFSI had a negative effect on cervical cancer (OR = 0.996, 95 % CI: 0.995, 0.998 P = 1.70E-07), which still persisted after Bonferroni correction. However, no causal effect of LNSP on cervical cancer was found according to the IVW results (OR = 1.003, 95 % CI: 1.000, 1.007, P = 0.071). From the results of MR-PRESSO and MR-Egger, no SNP with horizontal pleiotropy between cervical cancer was detected and no SNP was identified as an outlier SNP. Cochran's Q statistic suggested that no heterogeneity existed among IVs of AFSI and LNSP. According to Leave-one-out analysis, the results of MR did not change after excluding any single IV.

Conclusion

This MR study reveals that early AFSI has a causal effect on cervical cancer.

Survival of cervical cancer patients at Moi teaching and Referral Hospital, Eldoret in western Kenya

BACKGROUND

Cervical cancer is a major health burden and the second most common cancer after breast cancer among women in Kenya. Worldwide cervical cancer constitutes 3.1% of all cancer cases. Mortality rates are greatest among the low-income countries because of lack of awareness, screening and early-detection programs and adequate treatment facilities. The main aim was to estimate survival and determine survival predictors of women with cervical cancer and limited resources in western Kenya.

METHODS

Retrospective charts review of women diagnosed with cervical cancer and follow-up for two years from the date of the histologic diagnosis. The outcome of interest was death or survival at two years. Kaplan Meier estimates of survival, log-rank test and Cox proportional hazards regression were used in the survival analysis.

RESULTS

One hundred and sixty-two (162) participants were included in the review. The median duration was 0.8 (interquartile range (IQR) 0.3, 1.6) years. The mean age at diagnosis was 50.6 years (SD12.5). The mean parity was 5.9 (SD 2.6). Fifty percent (50%) did not have health insurance. Twenty six percent (26%) used hormonal contraceptives, 25.9% were HIV positive and 70% of them were on anti-retroviral treatment. The participants were followed up for 152.6 person years. Of the 162 women in the study, 70 (43.2%) died giving an overall incidence rate (IR) of 45.9 deaths per 100 person years of follow up. The hazard ratios were better for the patients who survived (0.44 vs 0.88, p-value < 0.001), those who had medical insurance (0.70 vs 0.48, p-value = 0.007) and those with early stage at diagnosis (0.88 vs 0.39, p-value < 0.001). Participants who were diagnosed at late stage of the disease according to the International Federation of Gynecology and Obstetrics staging for cervical cancer (FIGO stage 2B-4B) had more than eight times increased hazard of death compared to those who were diagnosed at early stage (1-2A): Hazard Ratio: 8.01 (95% CI 3.65, 17.57). Similarly, those who underwent surgical management had 84% reduced hazard of mortality compared to those who were referred for other modes of care: HR: 0.16 (95% CI: 0.07, 0.38).

CONCLUSION

Majority of the participants were diagnosed late after presenting with symptoms. The 1 and 2-year survival probability after diagnosis of cervical cancer was 57% AND 45% respectively. It is imperative that women present early since surgery gives better prognosis or better still screening of all women prioritized.

Cervical cancer awareness and risk factors among women residing in an urban slum in Lagos, Southwest Nigeria

Background

Poor awareness of cervical cancer and high prevalence of its risk factors may be responsible for the large burden of cervical cancer in low-income countries. This study assessed awareness of cervical cancer and prevalence of risk factors among women residing in a slum in Lagos, Nigeria.

Methods

This was a descriptive cross-sectional study carried out amongst 305 women of reproductive age (15-49 years) in Idi-Araba, a slum in Urban Lagos. Data were collected using interviewer administered questionnaires. Analysis was done with SPSS 20 software.

Results

Mean age of respondents was 33.5(9.0) years. Only 12.8% of the respondents had heard of cervical cancer. Ninety-five percent of respondents were sexually active and 56.2% had more than one lifetime sexual partner. Close to half (47.3%) of respondents had their first sexual intercourse before the age of 20. One in five (22.2%) had 5 or more children. Half of the respondents (54.8%) had had abnormal vaginal discharge.

Conclusion

Awareness of cervical cancer among the women was poor and prevalence of risk factors of cervical cancer was high. Campaigns aimed at increasing awareness of cervical cancer, and screening should be carried out by governmental and charitable organizations for women residing in slums.

Age-specific and genotype-specific carcinogenic human papillomavirus prevalence in a country with a high cervical cancer burden: results of a cross-sectional study in Estonia

OBJECTIVES

To describe age-specific and type-specific carcinogenic human papillomavirus (HPV) prevalence prior to large-scale effect of HPV vaccines in Estonia and to analyse the risk factors associated with carcinogenic HPV.

DESIGN

Cross-sectional study using self-administered questionnaire and self-collected vaginal swabs for detection of HPV infection.

SETTING

Estonian Biobank database.

PARTICIPANTS

Stratified random sample of women aged 30-33, 57-60 and 67-70 years living in one of the three largest counties in Estonia. Of 3065 women approached, 1347 (43.9%) returned questionnaires and specimens for HPV DNA detection.

OUTCOME MEASURES

HPV prevalence and fully adjusted ORs with 95% CIs for risk factors.

RESULTS

HPV prevalence was highest among women aged 30-33 years (18.7%; 95% CI 15.8 to 21.9) followed by those aged 67-70 years (16.7%; 95% CI 12.4 to 22.0) and 57-60 years (10.2%; 95% CI 7.8 to 13.3). HPV16 and HPV56 were the most common among women aged 30-33 years (both 4.0%; 95% CI 2.7 to 5.9), and HPV68 was the most common among women aged 57-60 years (2.8%; 95% CI 1.5 to 4.7) and 67-70 years (6.4%; 95% CI 3.6 to 10.4). Vaccination with nonavalent vaccine would have halved the carcinogenic HPV prevalence among women aged 30-33 years. The odds of infection with carcinogenic HPV were higher among women with six or more sexual partners among younger (OR 2.99; 95% CI 1.54 to 5.81) and older (OR 3.80; 95% CI 1.25 to 11.55) women and lower (OR 0.35; 95% CI 0.17 to 0.72) among younger married women.

CONCLUSIONS

This study demonstrated U-shaped age-specific genotype profile of carcinogenic HPV prevalence, indicating that public health providers should focus on developing exit strategies for the cervical cancer screening programme in Estonia with a possible extension of HPV testing beyond the current screening age of 65 years. Generalisability of the findings of this study may be affected by the low response rate.

The Role of FBXW7 in Gynecologic Malignancies

The F-Box and WD Repeat Domain Containing 7 (FBXW7) protein has been shown to regulate cellular growth and act as a tumor suppressor. This protein, also known as FBW7, hCDC4, SEL10 or hAGO, is encoded by the gene FBXW7. It is a crucial component of the Skp1-Cullin1-F-box (SCF) complex, which is a ubiquitin ligase. This complex aids in the degradation of many oncoproteins, such as cyclin E, c-JUN, c-MYC, NOTCH, and MCL1, via the ubiquitin-proteasome system (UPS). The FBXW7 gene is commonly mutated or deleted in numerous types of cancer, including gynecologic cancers (GCs). Such FBXW7 mutations are linked to a poor prognosis due to increased treatment resistance. Hence, detection of the FBXW7 mutation may possibly be an appropriate diagnostic and prognostic biomarker that plays a central role in determining suitable individualized management. Recent studies also suggest that, under specific circumstances, FBXW7 may act as an oncogene. There is mounting evidence indicating that the aberrant expression of FBXW7 is involved in the development of GCs. The aim of this review is to give an update on the role of FBXW7 as a potential biomarker and also as a therapeutic target for novel treatments, particularly in the management of GCs.

The Preventive Role of the Vitamin D Endocrine System in Cervical Cancer

Vitamin D along with its active metabolite calcitriol and its metabolic and signaling system, known as the vitamin D endocrine system, have been widely recognized as a pivotal regulator of calcium homeostasis in addition to non-calcemic antitumoral effects in a variety of human cancers, including cervical cancer. Several studies have found an inverse relationship between the incidence of cervical neoplasia and vitamin D levels. This narrative review updates the current evidence supporting the notion that the vitamin D endocrine system has a preventive role on cervical cancer, mainly in the early phases of the disease, acting at the level of suppressing cell proliferation, promoting apoptosis, modulating inflammatory responses, and probably favoring the clearance of human papillomavirus-dependent cervical lesions. Although an optimal vitamin D status helps in the prevention and regression of low-grade squamous intraepithelial lesions of the cervix, it appears that vitamin D alone or combined with chemotherapeutic agents has little effectivity once advanced cervical cancer is established. These observations suggest that an optimal vitamin D status might exert beneficial actions in the early phases of cervical cancer by preventing its onset and progression.

Transition in the ages at key reproductive events and its determinants in India: evidence from NFHS 1992-93 to 2019-21

INTRODUCTION

Reproductive health events have changed fertility and family planning needs, depicting the changing life patterns of women and the population to which they belong. Understanding the pattern at which these events occur helps in understanding the fertility pattern, family formation and the idea about health essential needs for women. This paper attempts to see the variation in reproductive events (first cohabitation, first sex and first birth) over three decades and also to see potential contributing factors among the reproductive age group of women using secondary data from Data Source: All rounds of the National Family Health Survey (1992-93 to 2019-2021) have been utilized.

METHODS AND RESULTS

Cox Proportional Hazard Model illustrates that all regions have initiated their first birth later than women who belong to the east region similar pattern has been obtained for first cohabitation and first sex except for the central region. Multiple Classification Analysis (MCA) depicts the increasing pattern in the predicted mean age at first cohabitation, sex and birth for all demographic characteristics; the highest increment was found in SC women, Uneducated women and Muslim women. Kaplan Meier Curve demonstrates that women with no education, primary or secondary education are shifting towards higher educated women. Most importantly, the results of the multivariate decomposition analysis (MDA) revealed that education played the largest contribution among the compositional factors in the overall increase in mean ages at key reproductive events.

CONCLUSIONS

Though reproductive health has long been essential in women's lives, they are still very confined to specific domains. Over time the government has formulated several proper legislative measures relating to various domains of reproductive events. However, given that the large size and heterogeneity in social and cultural norms result in changing ideas and choices regarding the initiation of reproductive events, national policy formulation needs to be improved or amended.

Early-onset of sexual activity as a potential risk of cervical cancer in Africa: A review of literature

Introduction

In most African countries, cervical cancer is the most common cancer among women, both in terms of incidence and fatality. In the existing literature, age is risk factor for developing cervical cancer since it occurs mainly after the middle life of women. However, there have been contradictory findings in the literature on whether early sexual intercourse is linked to cervical cancer, with some studies indicating no relationship and others reporting an increased risk. Hence, this review analyzed data from recently published studies on cervical cancer.

Methods

Seven databases (MEDLINE via PubMed, Google Scholar, Scopus, Medscape, EMBASE, African Journals Online and Science Direct) were searched for papers published from January 2000 to March 2022 in English. Ten studies were included in analysis. The statistical analysis was performed using STATA 11. Heterogeneity between-study was explored by forest plot and inconsistency index (I²). The publication bias was checked by a funnel plot and Egger’s test. The pooled estimates of odds ratios were calculated by a random-effects model.

Results

In the subgroup analysis, there was no significant association between early sexual activity and cervical cancer. However, the overall pooled analysis of these ten studies revealed that there is an association between early sexual debut and cervical cancer. In the random effect model, we found a pooled odds ratio of 2.95 (95% CI = 1.06, 4.83), indicating that women who began sexual intercourse before the age of 18 had a higher risk of getting cervical cancer than adult women.

Conclusion

In this analysis, women who began having early sexual debut had a greater risk of developing cervical cancer than those who initiated sexual intercourse later in life. Delaying the age of first sexual activity among adolescents could help prevent the occurrence of cervical cancer.

The Correlation of Papanicolaou Smears and Clinical Features to Identify the Common Risk Factors for Cervical Cancer: A Retrospective and Descriptive Study from a Tertiary Care Hospital in Trinidad

Background: Cervical cancer, the fourth most frequent cancer in women, is associated with the human papillomavirus (HPV). This study identifies risk factors and clinical findings for abnormal cervical cytology and histopathology in the Trinidad and Tobago populations. Some risk factors include early age of first coitus, a high number of sexual partners, high parity, smoking, and using certain medications, such as oral contraception. This study aims to identify the significance of Papanicolaou (pap) smears and the common risk factors that contribute to the development of premalignant and malignant cervical lesions. Method: A three-year retrospective, descriptive study of cervical cancer was conducted at the Eric Williams Medical Sciences Complex. The subject population included 215 female patients aged 18 years and older with the following documented abnormal cervical cytology: (ASCUS), ASC-H, LSIL, HSIL, Atypical Glandular cells, HPV, Adenocarcinoma, and Invasive Squamous Cell Carcinoma. Histopathology records were analysed for thirty-three of these patients. Patients’ information was recorded on data collection sheets adapted from the North Central Regional Health Authority’s cytology laboratory standardised reporting format request form. Results and Findings: The data were analysed via Statistical Package for Social Sciences (SPSS) software edition 23 using frequency tables and descriptive analysis. The mean sample age of the population was 36.7 years, the first age of coitus was 18.1 years, the number of sexual partners was 3.8, and the number of live births was 2. LSIL was the most popular abnormal finding, 32.6%, followed by HSIL, 28.8%, and ASCUS, 27.4%. Most histopathological reports resulted in CIN I and II. Conclusions: The significant risk factors observed for cytology abnormalities and premalignant lesions were early age of coitus, a high number of sexual partners, and no use of contraception. Patients mostly presented as asymptomatic despite obtaining abnormal cytology results. Hence, regular pap smear screening should continue to be highly encouraged.

HPV and Cervical Cancer: A Review of Epidemiology and Screening Uptake in the UK

Cervical cancer is the fourth most common malignancy in females worldwide, and a leading cause of death in the United Kingdom (UK). The human papillomavirus (HPV) is the strongest risk factor for developing cervical intraepithelial neoplasia and cancer. Across the UK, the national HPV immunisation programme, introduced in 2008, has been successful in protecting against HPV-related infections. Furthermore, the National Health Service (NHS) implemented the cytology-based cervical cancer screening service to all females aged 25 to 64, which has observed a decline in cervical cancer incidence. In the UK, there has been an overall decline in age-appropriate coverage since April 2010. In 2019, the COVID-19 pandemic disrupted NHS cancer screening and immunisation programmes, leading to a 6.8% decreased uptake of cervical cancer screening from the previous year. Engagement with screening has also been associated with social deprivation. In England, incidence rates of cervical cancer were reported to be 65% higher in the most deprived areas compared to the least, with lifestyle factors such as cigarette consumption contributing to 21% of cervical cancer cases. In this article, we provide an update on the epidemiology of cervical cancer, and HPV pathogenesis and transmission, along with the current prevention programmes within the NHS.

The prevalence of high-risk human papillomavirus genotypes and related risk factors among Iranian women

Human papillomavirus (HPV) infection, which often includes high-risk genotype infection, is one of the leading causes of cervical cancer. This cross-sectional research included 503 Iranian women referred to the gynecology clinic of Kamali Hospital in Karaj, Iran, for routine cervical cancer screening between 2020 and 2021. Cervical specimens were collected from all participants with a special brush and transported to the laboratory for cervical cytology diagnosis. Overall HPV incidence among Iranian women was 39.96%, of which 23.06% had high-risk HPV genotypes and 9.7% had low-risk HPV types. The risk associated with HR-HPV types was considerably associated with employment and marital status.

The mortalities of female-specific cancers in China and other countries with distinct socioeconomic statuses: A longitudinal study

INTRODUCTION

Female-specific cancers seriously affect physical and psychological health of women worldwide.

OBJECTIVES

We aimed to elucidate trends in the age-standardized mortality rates (ASMRs) of breast cancer, cervical cancer, uterine cancer, and ovarian cancer in female populations with different socioeconomic statuses in China and in countries with different Human Development Index (HDI).

METHODS

A longitudinal study was performed using the data of cancer death in China and other 39 countries. The mortality rates were standardized with the Segi's world population. Trends in the mortalities were exhibited by estimated annual percentage change (EAPC). Pearson correlation was used to assess the association between EAPC and HDI.

RESULTS

In mainland China, female breast cancer, cervical cancer, uterine cancer, and ovarian cancer accounted for 6.60 %, 4.21 %, 2.50 %, and 2.02 % of cancer death (n = 1,314,040) in women with 1,220,251,032 person-years, respectively. The ASMRs of cervical cancer (EAPC = 3.87 %, P < 0.001) and ovarian cancer (EAPC = 1.81 %, P < 0.001) increased, that of female breast cancer unchanged, whereas that of uterine cancer was extremely higher and rapidly decreased (EAPC =  - 7.65 %, P < 0.001), during 2004-2019. The ASMRs of female breast and ovarian cancers were higher in urban and developed regions than in rural and undeveloped regions, in contrast to cervical and uterine cancers. The ASMRs of female breast and ovarian cancers were lower in China than in other countries, in contrast to uterine cancer. The ASMR of cervical cancer decreased, that of uterine cancer increased, in other countries during 2004-2017. EAPCs for the ASMRs of breast and ovarian cancers were inversely correlated to HDI.

CONCLUSION

The ASMRs of cervical and ovarian cancers increased, in contrast to uterine cancer, in China during socioeconomic transition. Trends in the ASMRs of breast and ovarian cancers were inversely associated with HDI. These data help control female-specific cancers.

Prevalence and risk factors associated with precancerous cervical lesions among women in two cities in Cameroon

Introduction

cervical cancer is the fourth commonest cancer of women world-wide with increasing incidence in developing countries. This study determined the prevalence and assessed risk factors associated with precancerous cervical lesions among women in Cameroon.

Methods

this cross-sectional study enrolled 925 women participants of a screening campaign for precancerous cervical lesions from June to November 2018 in the selected hospitals. A convenience sampling technique was used and socio-demographic, sexual and reproductive data collected from consented participants by means of self-administered questionnaire. During the gynaecologic examination, a cervical smear was collected, stained by the Papanicolaou staining technique and the results classified according to the Bethesda 2014 guidelines. Frequency, percentage, Chi square and regression analysis were conducted using SPSS version 20 and p-value considered at 0.05.

Results

of the 925 participants aged 25-65 years (mean 40.2±10.2 SD), 113 (12.2%) had the lesions among whom 9 (7.9%) had atypical squamous cells of undetermined significance, 75 (66.4 %) had Low-grade squamous intraepithelial lesion and 29 (25.7%) had high-grade squamous intraepithelial lesion. Factors associated with the lesions were: age 1.85 [1.42-2.41; p= 0.001] and parity [OR= 1.46; 95% CI: 1.30-1.89; P= 0.004].

Conclusion

the prevalence of precancerous lesions was 12.2%. Age, parity were significant risk factors. Regular screening targeting the population at risk in this study becomes a priority.

Extraterrestrial Gynecology: Could Spaceflight Increase the Risk of Developing Cancer in Female Astronauts? An Updated Review

Outer space is an extremely hostile environment for human life, with ionizing radiation from galactic cosmic rays and microgravity posing the most significant hazards to the health of astronauts. Spaceflight has also been shown to have an impact on established cancer hallmarks, possibly increasing carcinogenic risk. Terrestrially, women have a higher incidence of radiation-induced cancers, largely driven by lung, thyroid, breast, and ovarian cancers, and therefore, historically, they have been permitted to spend significantly less time in space than men. In the present review, we focus on the effects of microgravity and radiation on the female reproductive system, particularly gynecological cancer. The aim is to provide a summary of the research that has been carried out related to the risk of gynecological cancer, highlighting what further studies are needed to pave the way for safer exploration class missions, as well as postflight screening and management of women astronauts following long-duration spaceflight.

High-risk human papillomavirus infection in pregnant women: a descriptive analysis of cohorts from two centers

The aim was to descriptively analyze the clinical characteristics, cytopathology, and outcomes of pregnant patients with high-risk human papillomavirus (HPV) infection. Clinical data of 151,516 female patients with high-risk HPV infection were retrospectively collected. Baseline data, cervical cytology results, histopathology, HPV types, delivery mode, and follow-up outcomes were recorded for descriptive analysis. A total of 157 patients were identified as positive for high-risk HPV. There were 32 (24.2%), 6 (4.5%), and 107 (81.1%) cases of HPV-16, HPV-18, and other types, respectively. Additionally, 12 patients showed combined infection with HPV-18 or HPV-16 and other types. Cytopathological examinations showed that the most common type was low-grade squamous intraepithelial lesion (LSIL; 104 cases, 78.8%), followed by high-grade squamous intraepithelial lesion (HSIL; 17 cases, 12.8%), atypical squamous cells of undetermined significance (10 cases, 9.6%), and cervical cancer (1 case, 0.7%). Thirty-seven patients underwent colposcopic biopsy, of whom 9 (24.3%) showed normal results, while 12 (32.4%) and 13 (35.1%) patients had LSIL and HSIL, respectively. χ² tests demonstrated that different delivery modes did not show significant difference in patients' cervical cytopathology (p>0.05). However, therapeutic methods were statistically different among patients with different cytopathological types (p<0.05). Cervical alterations in pregnancy mostly go along with high-risk HPV infection. High-risk HPV infection in pregnancy with abnormal cervical cytology should be followed closely during the pregnancy and postpartum period.

Current Status of Human Papillomavirus Infection and Cervical Cancer in the Philippines

Cervical cancer is estimated to cause 341,831 deaths each year, with 9 of 10 deaths occurring in developing countries. Over the past decade, there has been a significant increase in cervical cancer incidence among women in the Philippines. Persistent infection with high-risk human papillomavirus (HPV) is the well-established necessary cause of cervical cancer. Based on limited studies conducted in the Philippines, the prevalence of infection with any HPV genotype was 93.8% for cervical squamous cell carcinoma and 90.9% for cervical adenocarcinomas. HPV types 16 and 18 were the most common HPV genotypes among Filipino patients with cervical cancer. On the other hand, the incidence of HPV infection among Filipino women with normal cervices was 9.2%. The World Health Organization has launched a global agenda of eliminating HPV infection by 2030. One of its key milestones is to vaccinate 90% of girls with the HPV vaccine by 15 years. However, the HPV vaccination rate among Filipino women remains to be unsatisfactory. HPV vaccination has only been included in the Philippine Department of Health's community-based National Immunization Program in 2015. Despite these efforts, the Philippines currently ranks last on HPV program coverage among low-middle income countries, with coverage of only 23% of the target female population for the first dose and 5% for the final dose. The principal reason for the non-acceptance of HPV vaccines was the perceived high cost of vaccination. The low utilization of available cervical cancer screening tests such as Pap smear and visual inspection with acetic acid hampered the Philippines' control and prevention of HPV infection and cervical cancer. Among those diagnosed with cervical cancer in the Philippines, only an estimated 50% to 60% receive some form of treatment. To this end, we summarize the burden of HPV infection and cervical cancer on Filipinos and the risk factors associated with the disease. We present the current screening, diagnostics, treatment, and prevention of HPV-related diseases in the Philippines. Lastly, we also propose solutions on how each building block in health systems can be improved to eliminate HPV infection and reduce the burden of cervical cancer in the Philippines.

The Relationship Between Sexual Intercourse Before the age of 13 and Alcohol, Tobacco, and Other Drug use among High School Students

Research has indicated that early sexual intercourse in high school is associated with poor health outcomes such as unintentional pregnancy and sexually transmitted infections (STIs). What is lacking in the research is an understanding of the relationship between even earlier sexual initiation (i.e., before the age of 13) and alcohol, tobacco, and other drug (ATOD) use behaviors. As such, the purpose of this study was to assess whether sexual intercourse younger than 13 years of age was predictive of ATOD use among students currently in high school. Data was derived from the 2015 Youth Risk Behavior Survey (n = 15,624). This national study is conducted every odd year, and is a representative sample of high school students in the United States. Logistic regression was used to determine the relationship between sexual initiation younger than 13 years of age and current ATOD use among high school students. The results of this study found that early sexual initiation was predictive of current high school ATOD use with students who had initiated early sexual intercourse having significantly higher prevalence rates among all variables measured. The results of this study indicates health education regarding ATOD use, as well as sexual health education should be introduced to US student at an earlier age. These results indicate that continued education is needed in the pre-teen years to prevent early health risk behaviors in our youth.

A Brief Overview of Oncogenes and Signal Transduction Pathways in Gynecological Cancer

Gynecological cancer is the cancer that originates in the female reproductive system. According to the anatomical location of the cancer, it is distinguished into cervical, uterine, vaginal, ovarian, and vulvar cancer. Oncogenes and tumor catalytic genes play a key role in the genesis and development of gynecological cancer. This article presents the signaling pathways and expression of oncogenes that take place in the carcinogenesis of the female reproductive system.

HPV vaccine effectiveness by age at first vaccination among Japanese women

In Japan, the National Immunization Program against human papillomavirus (HPV) targets girls aged 12‐16 years, and catch‐up vaccination is recommended for young women up to age 26 years. Because HPV infection rates increase soon after sexual debut, we evaluated HPV vaccine effectiveness by age at first vaccination. Along with vaccination history, HPV genotyping results from 5795 women younger than 40 years diagnosed with cervical intraepithelial neoplasia grade 2‐3 (CIN2‐3), adenocarcinoma in situ (AIS), or invasive cervical cancer were analyzed. The attribution of vaccine‐targeted types HPV16 or HPV18 to CIN2‐3/AIS was 47.0% for unvaccinated women (n = 4297), but 0.0%, 13.0%, 35.7%, and 39.6% for women vaccinated at ages 12‐15 years (n = 36), 16‐18 years (n = 23), 19–22 years (n = 14), and older than 22 years (n = 91), respectively, indicating the greater effectiveness of HPV vaccination among those initiating vaccination at age 18 years or younger (P < .001). This finding was supported by age at first sexual intercourse; among women with CIN2‐3/AIS, only 9.2% were sexually active by age 14 years, but the percentage quickly increased to 47.2% by age 16 and 77.1% by age 18. Additionally, the HPV16/18 prevalence in CIN2‐3/AIS was 0.0%, 12.5%, and 40.0% for women vaccinated before (n = 16), within 3 years (n = 8), and more than 3 years after (n = 15) first intercourse, respectively (P = .004). In conclusion, our data appear to support routine HPV vaccination for girls aged 12‐14 years and catch‐up vaccination for adolescents aged 18 years and younger in Japan.

Universal Health Coverage Policy and Progress towards the Attainment of Universal Sexual and Reproductive Health and Rights Services in Ethiopia

Critical interpretive analysis of literature review was applied to shed light on the status of universal access to Sexual and Reproductive Health and Rights (SRHR) and the progress towards Universal Health Coverage (UHC) in Ethiopia. Special emphasis was given to the determinations of the Ethiopian health policy frameworks to include comprehensive SRHR services in the UHC benefit package. Clinical services for pregnant women and newborn, abortion care, family planning, Female Genital Mutilation (FGM) complication treatment, Comprehensive Sexuality Education (CSE), and sexual health services are included in the national cost exempted services, but the latter three are not yet included in the health programs with defined objective and work plan. Capital intensive Sexual and Reproductive Health (SRH) services (such as infertility and reproductive cancers diagnosis and treatment) are not included in the UHC benefit package. Over the last two decades, a substantive progress is made in family planning service and maternal and child health, probably because they were taken as Millennium Development Goals (MDGs) indicators and have got better financial protection and political commitment. In order to include other SRHR services in the benefit package in due course and attain universal SRHR services without financial hardship in the Primary Health Care (PHC) setting, the domestic financing should be endorsed as a driving force. To make the multi-sectoral efforts towards achieving UHC and sustainable development goals (SDGs) complete, building resilient health systems through the humanitarian-development nexus for health systems strengthening in fragile setting should be equally prioritized, thereby leaving no one behind underserved.

The Predictors for Non-Adherence to Colposcopy among Women in an Underserved Community in Rural Southern Western Nigeria

Background

Cervical cancer is the fourth most common cancer in women. It is a major public health problem in developing countries. Effective cervical cancer screening requires that women adhere to the screening program. The factors that influence adherence to colposcopy in rural areas of Nigeria are unknown. The objective of the study was to determine the factors that 0determine adherence and the sexual and reproductive factors that are associated with non-adherence of women to colposcopy.

Methods

This is a cross-sectional study of a project undertaken to determine the age- specific incidence of Human Papillomavirus (HPV) infection in Irun Akoko, a rural town in Ondo state of Nigeria. A total of 492 women with abnormal results from 1420 women that were screened were recalled for colposcopy examination.

Results

The non-adherence rate for colposcopy in this study was 25.8%. Women younger than 40years (p=0.0011) and those with number of living children ≤2 (p=0.04) are more likely to be non-adherent to colposcopy.

Conclusion

The non-adherence rate to colposcopy was high. Younger women and those with fewer children were more likely not to adhere to colposcopy.

Association Between Timing of Sexual Initiation and Suicidal Ideation Among Adolescents in South Korea: A Cross-Sectional Study

BACKGROUND

The age of adolescents' sexual initiation is decreasing worldwide. Early sexual initiation has been reported to affect social, physical, and mental health, but little is known about the relationship between the timing of sexual initiation and suicidal ideation.

PURPOSE

This study was designed to identify the association between the timing of sexual initiation and suicidal ideation by gender.

METHODS

This cross-sectional study used data from South Korea's Youth Health Behavior Online Survey for 2016. Data on first- to 12th-grade students (N = 10,810) were analyzed using descriptive statistics, χ2 tests, and hierarchical logistic regression.

RESULTS

The results revealed a significant relationship between early sexual initiation and suicidal ideation among both boys and girls. This relationship remained significant after controlling for confounding variables that are known to affect suicidal ideation, including perceived stress, hopelessness, school grades, and sociodemographic characteristics. The risk of suicidal ideation was higher among students who first experienced sex in earlier grades (before the ninth grade) and was also higher in girls than in boys.

CONCLUSIONS/IMPLICATIONS FOR PRACTICE

Health providers should be aware of the potentially higher risk of suicidal behavior among adolescents after early sexual initiation. Given the extreme sensitivity and vulnerability of this target population, a multidisciplinary school- or community-based intervention program to promote the mental health of affected individuals and the general student population is warranted.

Knowledge of cervical cancer risk factors among Palestinian women: a national cross-sectional study

Background

High awareness of cervical cancer (CC) risk factors is important to decrease the morbidity and mortality associated with CC. This study aimed to assess the knowledge level of Palestinian women about CC risk factors and to determine the factors associated with good knowledge.

Methods

This was a national cross-sectional study. Adult women from hospitals, primary healthcare centers, and public spaces of 11 governorates in Palestine were recruited using a stratified convenience sampling. A translated-into-Arabic version of the validated CC awareness measure (CeCAM) was used to assess the knowledge about the 11 CC risk factors. For each correctly identified risk factor, the participant was given one point. The total score was calculated and was categorized into three categories: poor knowledge (0–3), fair knowledge (4–7), and good knowledge (8–11).

Results

A total of 7223 participants completed the Arabic CeCAM (response rate = 89.3%) and 7058 questionnaires were included in the final analysis: 2655 from the Gaza Strip and 4403 from the West Bank and Jerusalem. Participants recruited from the Gaza Strip were younger, getting lower monthly incomes, and with less chronic diseases than participants recruited from the West Bank and Jerusalem. The most frequently identified risk factor was ‘having a weakened immune system’ (n = 5458, 77.3%) followed by ‘infection with a sexually transmitted infection’ (n = 5388, 76.3%). The least identified risk factor was ‘having many children’ (n = 1597, 22.6%). Only 1670 women (23.7%) had good knowledge of CC risk factors. Women living in the Gaza Strip were more likely than women living in the West Bank and Jerusalem to have good knowledge (25.2% vs 22.7%). Completing a secondary or diploma degree, being employed, and having a monthly income of ≥ 1450 NIS (around $450) were all associated with lower likelihood of having good knowledge of CC risk factors. Conversely, knowing someone with cancer was associated with higher likelihood of having good knowledge.

Conclusion

The overall awareness of CC risk factors was low. There is a substantial need to establish educational programs to promote Palestinian women’s awareness of CC.

Supplementary Information

The online version contains supplementary material available at 10.1186/s12905-021-01510-2.

Burden of Risk Factors for Cervical Cancer Among Women Living in East Africa: An Analysis of the Latest Demographic Health Surveys Conducted Between 2014 and 2017

In East Africa, cervical cancer is a leading cause of morbidity and mortality among women diagnosed with cancer. In this study, we describe the burden of risk factors for cervical cancer among women of reproductive age in five East African countries.

Epidemiologic Pattern of Cancer in Kathmandu Valley, Nepal: Findings of Population-Based Cancer Registry, 2018

PURPOSE

Although cancer is an important and growing public health issue in Nepal, the country lacked any population-based cancer registry (PBCR) until 2018. In this study, we describe the establishment of the PBCR for the first time in Nepal and use the registry data to understand incidence, mortality, and patterns of cancer in the Kathmandu Valley (consisting of Kathmandu, Lalitpur, and Bhaktapur districts), which comprises 10.5% of the estimated 29 million population of Nepal in 2018.

MATERIALS AND METHODS

The PBCR collects information from facilities and communities through the active process. The facilities include cancer or general hospitals, pathology laboratories, hospice, and Ayurvedic centers. In the communities, the field enumerators or female community health volunteers collected the data from the households. In addition, the Social Security and Nursing Division under the Department of Health Services, which provides subsidy for cancer treatment of underprivileged patients, was another major source of data. The collected data were verified for residence, accuracy, and completeness and then entered and analyzed using CanReg5 software.

RESULTS

In the Kathmandu Valley, the PBCR registered 2,156 new cancer cases with overall age-adjusted incidence rate for all cancers of 95.7 per 100,000 population (95.3 for males and 98.1 for females). The age-adjusted mortality rate for males was 36.3 (n = 365) and for females 27.0 (n = 305) per 100,000 population. We found that the commonest cancers in males were lung and stomach, whereas in females, they were breast and lung cancer. Gallbladder cancer was among the top five common cancers in both sex.

CONCLUSION

These findings provide a milestone to understand the cancer burden in the country for the first time using the PBCR and will be helpful to develop and prioritize cancer control strategies.

Risk factors for precancerous cervical lesion among women screened for cervical cancer in south Ethiopia: Unmatched case-control study

BACKGROUND

Nearly 90% of deaths from cervical cancer occur in a low resource setting. In Ethiopia, the magnitude of precancerous cervical lesions ranges from 7% to 28%. Precancerous cervical lesions may progress to cervical cancer. Early screening and treatment of precancerous cervical lesions is a cost-effective way to avert the growth of cervical cancer. However, there has been limited research on risk factors for precancerous cervical lesions in Ethiopia. Therefore, this study aimed to identify risk factors for precancerous cervical lesions among women screened for cervical cancer in south Ethiopia.

METHOD

A facility-based unmatched case-control study was carried out in five health facilities in south Ethiopia between 8 May to 28 September 2018. Interviewer administered questionnaires were used to collect data from 98 cases and 197 controls. Multivariate logistic regression was employed to identify determinants of precancerous cervical lesions.

RESULTS

Women aged 30-39 years (AOR = 2.51, 95% CI: 1.03-6.08), monthly income ≤66 (AOR = 3.51, 95% CI: 1.77-6.97), initiation of first sexual intercourse at age less than or equal to 20 (AOR = 2.39, 95% CI: 1.14-5.47), having more than one lifetime sexual partner (AOR = 4.70, 95% CI: 2.02-10.95), having a partner/ husband with more than one lifetime sexual partner (AOR = 2.98, 95% CI: 1.35-6.65) had higher odds of precancerous cervical lesions.

CONCLUSION AND RECOMMENDATION

Strategies to prevent precancerous cervical lesions should focus on modification of lifestyle and sexual behaviour. The findings of this study highlight several implications for policymakers: targeting older women for cervical cancer screening, addressing inequalities and education relating to risky sexual behaviour may reduce precancerous cervical lesions. Furthermore, future longitudinal studies are needed to assess the awareness of women about cervical cancer screening.

Effectiveness of school-based interventions in delaying sexual debut among adolescents in sub-Saharan Africa: a protocol for a systematic review and meta-analysis

INTRODUCTION

Early sexual debut is associated with poor sexual and reproductive health outcomes across the life course. A majority of interventions aimed at delaying sexual debut among adolescents in sub-Saharan Africa (SSA) have been implemented in schools with mixed findings on the effectiveness of such interventions. This systematic review will summarise and synthesise existing evidence on the effectiveness of school-based interventions in delaying sexual debut among adolescents aged 10-19 years.

METHODS AND ANALYSIS

We will conduct a comprehensive database search of peer-reviewed studies published in PubMed, Scopus, Science Direct, Web of Science, HINARI and EBSCO (PsycINFO, Global Health, CINAHL) and in Cochrane library, National Institute of Health and Turning Research into Practice databases for ongoing studies yet to be published. All studies conducted in SSA between January 2009 and December 2020, regardless of the study design, will be included. Two authors will independently screen all retrieved records and relevant data on sexual debut extracted.Data will be pooled using the random effects model. Dichotomous outcomes will be reported as risk ratios and continuous data as mean difference at 95% CI. Heterogeneity will be assessed using the I² statistic. Findings will be presented in tables and charts, while providing a description of all included studies, themes and concepts drawn from literature.

ETHICS AND DISSEMINATION

Ethical approval is not required. The findings will be disseminated through peer-reviewed publications, presentations at relevant conferences and other convening focusing on adolescent sexual and reproductive health.

Preinvasive cervical lesions and high prevalence of human papilloma virus among pregnant women in Cameroon

Introduction

With the exception of breast cancer, gynecologic neoplasms constitute the most common cancers that complicate pregnancy. Pregnancy therefore presents a window of opportunity for all pregnant women who do not take part in routine free cervical cancer screening program to undergo a free voluntary cytological test and human papillomavirus (HPV) DNA testing. This study aimed to determine prevalent HPV genotypes among pregnant women using exfoliated cells from cervical swabs and determine risk factors responsible for the upsurge of cervical precancerous lesions.

Methods

In a cross-sectional study conducted from October 2017 to March 2018, a total of 482 pregnant women were enrolled. Cervical swabs and samples for cytology were collected from each enrolled participant during their routine prenatal consultation. The Papanicolaou's (Pap) staining technique was performed and all cervical swab samples were amplified through conventional PCR. HPV genotypes were identified using the Roche Linear Array Genotyping Assay. SAS 9.2 software (SAS Institute Inc., USA) was used for statistical analysis and p values >0.05 were considered significant.

Results

Among the 482 participants, 354 (73.4%) had normal cytology and 128 (26.6%) had abnormal cytology. HPV DNA was identified in 62/464 (13.4%). The most prominent HPV types identified were HPV 16 (24%), HPV 18 (36.4%), HPV 45 (28%), HPV 53 (18.9%) and HPV 67 (24.3%). Early intercourse, number of sexual partners and age at first pregnancy were some of the risk factors that influenced the etiology of preinvasive cervical lesion.

Conclusions

Prevalent HPV types identified in our study were HPV 16, 18, 45, 53 and 67. Organizing effective screening programs in prenatal care facilities is crucial in order to detect prevalent HR-HPV types and precursors for cervical lesions. The addition of HPV vaccination in the national immunization program with focus on the different epidemiological HPV genotypes circulating in the country is warranted.

Knowledge and attitude about cervical cancer and human papillomavirus vaccine among medical and paramedical students of a university

BACKGROUND

Every year, globally 570,000 women are diagnosed with cervical cancer, out of which around 311,000 die. India contributes to about 132,000 new cases and 74,000 deaths yearly. One of the major risk factors for cervical cancer is infection with some types of human papillomavirus (HPV). This is both preventable (by vaccination) and detectable early (routine screening programs).

OBJECTIVE

The objective of this study is to assess the knowledge and attitude in medical and paramedical students about cervical cancer and HPV vaccination.

MATERIAL AND METHODS

A cross-sectional survey was conducted, using predesigned and validated questionnaire. It was segregated into three parts: Q1-demographic details, Q2a-questions assessing knowledge, Q2b-questions assessing attitude. Our target population was female students (18-25 years) studying in medical, nursing, and physiotherapy colleges. Descriptive statistics of data was analyzed using SPSS 16.0.

RESULTS

We had 73% response rate. Most participants belonged to upper middle and upper socioeconomic class, were pursuing MBBS, resided in villages, had educated parents, and had good health-care-seeking behavior. School education, television, and printed advertisements appeared to be underutilized. Around 50% of the participant had received chickenpox and typhoid vaccine, but only 8% had received HPV vaccine. The mean knowledge score was 5.19 ± 2.24, with 0.00 minimum and 11.0 maximum, out of a maximum possible score of 17. Only, place of residence appeared to effect the knowledge score.

CONCLUSION

The study shows the dismal knowledge levels about HPV amongst students. Participants were interested in seeking knowledge; consider HPV vaccination provided they were provided with sufficient knowledge.

A Descriptive Cross-Sectional Study on Awareness and Belief of People About Cancer in Southern Ethiopia: Special Focus on Breast and Cervical Cancers

BACKGROUND

The general population's lack of awareness, limited knowledge, myths and misconceptions about breast and cervical cancers (CCs) is considered as a serious public health problem.

OBJECTIVE

This study was intended to assess the status of awareness and beliefs of people about cancer and breast and CCs in particular.

METHODS

A descriptive community-based cross-sectional survey was conducted on 345 study participants in Southern Ethiopia. A pretested, structured questionnaire that contained demographics and questions on the variables of exposure to biological and chemical carcinogenic agents, lifestyle and personal behavior was administered. Frequency distribution and proportions were used to describe the study population in relation to major variables.

RESULTS

The mean age of study participants was 25.19 (Range 15-58). More than a third of the study participants heard about cancer from Mass Media followed by schools (28.5%) and treating physicians (6.7%). The proportion of study participants that knew about the association between smoking, alcohol intake and cancer development was 38.6% and 51.5%, respectively. Only 48% and 24.2% of the study participants heard about breast and CCs, respectively. The fact that 69.4% of the study participants had limited knowledge about the mode of transmission of the causative agents of CCs indicates that the study groups are at risk of acquiring the agent. Additionally, only 4.7% of the study participants were screened for CC and have poor breast self-examination experiences, indicating poor awareness and knowledge about the importance of screening programs.

CONCLUSION

Comprehensive awareness and knowledge about cancer in general and breast and CCs in particular is lacking in southern Ethiopia. Early sexual debut, limited knowledge about the diseases and unfavorable lifestyle are the risk factors to be addressed in public health education.

Adaptation and psychometric testing of the Chinese version of the Revised Illness Perception Questionnaire for cervical cancer patients

PURPOSE

Illness perception is an important factor that influences psychological distress, coping behaviors, and illness outcomes, and this factor is often assessed by the Revised Illness Perception Questionnaire (IPQ-R). Data regarding illness perception among cervical cancer patients are limited, especially in China. The study aimed to adapt and psychometrically test the Chinese version of the IPQ-R for Cervical Cancer (CIPQ-R-CC).

METHODS

This was a methodological study. Before the survey, the identity and causal subscales (originally 14 and 18 items, respectively) were adapted. Data were collected from 220 cervical cancer patients (N = 220) from June 2018 to February 2019. Psychometric properties were assessed using explanatory factor analysis, confirmatory factor analysis, Pearson correlation coefficients, one-way analysis of variance, t-tests and Cronbach's alpha coefficients.

RESULTS

Eight identity items and twenty-six causal items were included in the CIPQ-R-CC, which showed acceptable content validity (I-CVI = 0.78-1.00, S-CVI = 0.97-0.99). A five-factor solution was obtained from the cause subscale by explanatory factor analysis, and these factors explained 60.19% of the total variance. For Part III of the CIPQ-R-CC, after deleting nine items and respecifying five error covariances, the proposed seven-factor model was confirmed. There were low to moderate correlations between the latent factors (r＜0.52). Known-group validity was demonstrated in some groups with different demographic characteristics. The Cronbach's alpha coefficients were also acceptable (0.60-0.88).

CONCLUSION

The CIPQ-R-CC is a reliable and valid tool for assessing illness perception among Chinese cervical cancer patients. Future studies are needed to verify its factor structure and to confirm its theoretical connotation.