A 'busy day' effect on perinatal complications of delivery on weekends: a retrospective cohort study

Association between Delivery during Off-Hours and the Risk of Severe Maternal Morbidity: A Nationwide Population-Based Cohort Study

This study evaluated the association between off-hour deliveries and the risk of severe maternal morbidity (SMM). Data regarding Korean deliveries between 2005 and 2019 obtained from the National Health Insurance Service were used. SMM was evaluated using an algorithm developed by the United States Centers for Disease Control and Prevention. Modified Poisson regression analyses were conducted to investigate the association between off-hour deliveries and SMM, with stratification by hospital region and the number of beds. Approximately 32.7% of the 3,076,448 nulliparous women in this study delivered during off-hours, including 2.6% who experienced SMM. Patients who delivered at night had the highest risk of SMM (weekday nights, adjusted risk ratio (aRR): 1.41, 95% confidence interval (CI): 1.38-1.44; weekend nights, OR: 1.40, 95% CI: 1.34-1.46). The SMM of night deliveries was higher at hospitals located in small cities and those with 100-499 beds (weekend night: small cities, aRR: 1.49, 95% CI: 1.40-1.59; 100-499 beds, aRR: 1.83, 95% CI: 1.67-2.01; weekday night: small cities, aRR: 1.46, 95% CI: 1.42-1.51; 100-499 beds, aRR: 1.70, 95% CI: 1.62-1.79). Therefore, nighttime deliveries are associated with a higher risk of SMM, especially at hospitals located in small cities and those with 100-499 beds.

Associations between unit workloads and outcomes of first extubation attempts in extremely premature infants below a gestational age of 26 weeks

Objective

The objective was to explore whether high workloads in neonatal intensive care units were associated with short-term respiratory outcomes of extremely premature (EP) infants born <26 weeks of gestational age.

Methods

This was a population-based study using data from the Norwegian Neonatal Network supplemented by data extracted from the medical records of EP infants <26 weeks GA born from 2013 to 2018. To describe the unit workloads, measurements of daily patient volume and unit acuity at each NICU were used. The effect of weekend and summer holiday was also explored.

Results

We analyzed 316 first planned extubation attempts. There were no associations between unit workloads and the duration of mechanical ventilation until each infant's first extubation or the outcomes of these attempts. Additionally, there were no weekend or summer holiday effects on the outcomes explored. Workloads did not affect the causes of reintubation for infants who failed their first extubation attempt.

Conclusion

Our finding that there was no association between the organizational factors explored and short-term respiratory outcomes can be interpreted as indicating resilience in Norwegian neonatal intensive care units.

Quasinatural Experiment of Postnatal Home Visiting: An Independent Impact Study of Family Connects

INTRODUCTION

Family Connects (FC) is a postnatal nurse home visiting program that has scale-up potential because it is brief, inexpensive, and universal. Three investigations have linked Family Connects to improved maternal and family outcomes, but no independent impact studies have been conducted to date.

METHODS

This study investigates a FC program in Racine County, WI that was implemented by a multimunicipal health department in partnership with a local hospital. The sampling frame included all women who gave birth at the hospital from July 1, 2018 to August 31, 2019 (N=1,511). A quasinatural experiment resulted from systematically restricting FC recruitment to weekdays. All eligible women whose birth records and addresses were obtained from a vital records office were mailed a 6-month postpartum survey. Data collected from 489 respondents (32.4%) were analyzed in February 2022 to estimate the impact of FC on maternal health, infant health and development, and parenting behavior outcomes under intent-to-treat and per protocol assumptions.

RESULTS

No significant differences were observed between study groups at baseline. Despite evidence that the FC program in Racine met many model standards for implementation fidelity, null effects were observed at 6 months after delivery for most outcomes. Results suggested that parents from eligible households reported more frequent infant emergency medical episodes than parents who were not offered the program.

CONCLUSIONS

This study found few significant effects associated with FC participation. Further investigation is needed to identify the populations with and conditions under which the program produces its intended effects.

Strengthening Interprofessional Collaboration to Improve Transfers Between a Freestanding Birth Center and an Academic Medical Center

The number of individuals choosing to give birth in a freestanding birth center has doubled since 2004. As many as half of all pregnant persons planning for a birth center birth ultimately develop medical complications and are unable to give birth outside of the hospital. Integrating birth centers into their regional perinatal health care system optimizes outcomes by establishing predetermined pathways for antepartum and intrapartum transfers of care and facilitates ongoing communication and cooperation among clinicians. The Vanderbilt Birth Center is a freestanding birth center that is operated by an academic medical center and partners with a hospital-based midwifery practice that cares for patients transferring from the birth center. Since the inception of the birth center in 2015, the entire perinatal team has worked to improve the process and experience of patient transfer from birth center to hospital care. This article will present strategies implemented through the ongoing collaboration between birth center and hospital health care providers. These include adopting a shared electronic health record, clinical practice guidelines that align across birth sites, preparing birth center patients prenatally for the possibility hospital transfer, the presentation of a united team across birth sites, clear and widely disseminated communication pathways for hospital admission and patient handoff, and ongoing opportunities for interteam communication, collaboration, and education. These strategies may benefit similar midwifery practice models as they seek to partner with larger health care systems and improve the transfer experience for their patients.

Weekend delivery and maternal-neonatal adverse outcomes in low-risk pregnancies in the United States: A population-based analysis of 3-million live births

BACKGROUND

Childbirth is the most common cause of hospital admission in the United States. Previous studies have shown that there might be a "weekend effect" in perinatal care, indicating that mothers and newborns whose deliveries occur during the weekends are at increased risk of having adverse outcomes. This study aims to isolate the association between the weekend delivery and maternal-neonatal adverse outcomes by investigating low-risk pregnancies in nationwide data.

METHODS

A population-based study of all low-risk pregnancies (in-hospital, nonanomalous, term, normal birthweight, and singleton) was conducted based on US national natality data in 2017. Four maternal outcomes (ICU admission, uterine rupture, blood transfusion, and perineal laceration) and three neonatal outcomes (5-minute Apgar <7, NICU admission, and neonatal death) were defined as adverse outcomes. Logistic regression analyses were conducted to determine the association, adjusting for 23 maternal and neonatal characteristics and risk factors.

RESULTS

Among 3 011 577 low-risk pregnancies, 6.0% were reported to have at least one of the maternal-neonatal adverse outcomes. Weekend deliveries were significantly associated with six maternal-neonatal adverse outcomes with an exception of neonatal death. In general, weekend deliveries were 1.13 times significantly as likely to have any of seven maternal-neonatal adverse outcomes than weekday deliveries (OR 1.13, 95% CI 1.11-1.14), being attributed to adverse outcomes of more than 4500 mother-newborn pairs.

CONCLUSIONS

Weekend delivery is a consistent risk factor for both mothers and babies at the national level. Furthermore, studies are needed about possible modifiable factors that mediate these associations to ensure safe childbirth regardless of the day of delivery.

Birth during off-hours: Impact of time of birth, staff´s seniority, and unit volume on maternal adverse outcomes-a population-based cross-sectional study of 87 065 deliveries

BACKGROUND

The aim of this study was to investigate whether time of birth, unit volume, and staff seniority impact the incidence of maternal complications in deliveries ≥34 + 0 gestational weeks.

METHODS

We conducted a population-based cross-sectional study of 87 065 deliveries occurring between 2004 and 2015 in ten public hospitals in Styria, Austria. A composite adverse maternal outcome measure of uterine atony, postpartum hysterectomy, postpartum bleeding, impaired wound healing, postpartum infections requiring antibiotic treatment, sepsis, or maternal death was used to compare outcomes by time of birth, unit volume, and staff seniority. Based on delivery data, generalized estimating equations (GEEs) were used to calculate the risk of maternal adverse outcomes.

RESULTS

Maternal adverse events occurred in 1.33% of deliveries. Incidence of maternal adverse events was highest for units with >1000 deliveries (adjusted OR 1.40; CI 95%: 1.16-1.69) and higher for perinatal centers (adjusted OR 1.35; CI 95%: 1.15-1.57) compared with reference units (500-1000 deliveries/year). Delivery during the daytime compared with the afternoon and nighttime did not affect the incidence of maternal complications (P = 0.765 and P = 0.136, respectively). Compared with resident-guided deliveries, the odds ratio for an adverse event was the same when a consultant attended the delivery (adjusted OR 1.13; CI 95%: 0.98-1.30) but lower in deliveries managed by midwives only (adjusted OR 0.21; CI 95%: 0.07-0.64).

CONCLUSION

Procedures performed during the night shift were not associated with increased complication rates. Delivery volume and high-volume centers were associated with the highest risk of maternal complications, and units with 500-1000 deliveries per year were the lowest. With increasing odds of pregnancy risks, these results change, and delivering in a high-volume center becomes at least as safe as delivering in a smaller unit.

Does high workload reduce the quality of healthcare? Evidence from rural Senegal

There is a widely held perception that staff shortages in low and middle-income countries (LMICs) lead to excessive workloads, which in turn worsen the quality of healthcare. Yet there is little evidence supporting these claims. We use data from standardised patient visits in Senegal and determine the effect of workload on the quality of primary care by exploiting quasi-random variation in workload. We find that despite a lack of staff, average levels of workload are low. Even at times when workload is high, there is no evidence that provider effort or quality of care are significantly reduced. Our data indicate that providers operate below their production possibility frontier and have sufficient capacity to attend more patients without compromising quality. This contradicts the prevailing discourse that staff shortages are a key reason for poor quality primary care in LMICs and suggests that the origins likely lie elsewhere.

Birth during on-call period: Impact of care organization on mortality and morbidity of very premature neonates

OBJECTIVES

The evidence that risks of morbidity and mortality are higher when very premature newborns are born during the on-call period is inconsistent. This study aimed to assess the impact of this situation among other determinants of outcomes, particularly newborn characteristics and care organization.

METHODS

Observational study including all infants born < 30 weeks' gestation in a French tertiary perinatal center between 2007 and 2020. On-call period corresponded to weekdays between 6:30 p.m. and 8:30 a.m., weekends, and public holidays. The primary endpoint was survival without severe morbidity, including grade 3-4 intraventricular hemorrhage (IVH), cystic periventricular leukomalacia, necrotizing enterocolitis, severe bronchopulmonary dysplasia (BPD), and severe retinopathy of prematurity. The relationship between admission and outcome was assessed by an adjusted odds ratio (aOR) on the propensity of being born during on-call period and expressed vs. weekday. Secondary analyses were carried out in extremely preterm newborns (<27 weeks' gestation), in cases of early death (within 7 days), and before (2007-2013, 51.5% of the cohort) vs. after (2014-2020, 48.5% of the cohort) the implementation of a pediatrician-nurse team dedicated to newborn care in the delivery room.

RESULTS

A total of 1,064 infants [27.9 (26.3; 28.9) weeks, 947 (760; 1,147) g] were included: 668 during the on-call period (63%) and 396 (37%) on weekdays. For infants born on weekdays, survival without severe morbidity was 54.5% and mortality 19.2%. During on-call, these rates were 57.3% [aOR 1.08 (0.84-1.40)] and 18.4% [aOR 0.93 (0.67-1.29)]. Comparable rates of survival without severe morbidity [aOR 1.42 (0.87-2.34)] or mortality [aOR 0.76 (0.47-1.22)] were observed in extremely preterm infants. The early death rate was 6.4% on weekdays vs. 8.2% during on-call [aOR 1.44 (0.84-2.48)]. Implementation of the dedicated team was associated with decreased rates of mortality [aOR 0.57 (0.38, 0.85)] and grade 3-4 IVH [aOR 0.48 (0.30, 0.75)], and an increased rate of severe BPD [aOR 2.16 (1.37, 3.41)], for infants born during on-call.

CONCLUSION

In this cohort, most births of very premature neonates occurred during the on-call period. A team dedicated to newborn care in the delivery room may have a favorable effect on the outcome of infants born in this situation.

Impact of childbirth policy changes on obstetric workload over a 13-year period in a regional referral center in China - implications on service provision planning

BACKGROUND

We aimed to appraise the impact of the changing national childbirth policy since 2002, currently allowing two children per family, on obstetric workload in a regional referral center in China.

METHODS

In a retrospective cohort study, temporal changes were examined in relation with maternal demographics, incidence of women with high risk pregnancies and resource statistics in our hospital in managing singleton viable pregnancies (birth from 28 weeks gestational age onwards) for the period 2005-2017.

RESULTS

During this 13-year period, the number of singleton livebirths from 28 weeks gestational age onwards was 49,479. Annual numbers of births increased from 1,941 to 2005 to 5,777 in 2017. There were concomitant and significant increases in the incidence of multiparous women (10.6-50.8 %), of age ≥35 years (6.5-24.3 %), with prior caesarean Sec. (2.6-23.6 %), with ≥3 previous pregnancy terminations (1.0-4.9 %), with pre-gestational diabetes (0.2-0.9 %), and with chronic hypertension (0.2-1.2 %). There were associated increases in beds and staff complement and reduced average hospital stay. Nevertheless, while the workload of medical staff remained stable with increasing staff complement, that of midwives increased significantly as reflected by the total births: midwife ratio which increased from 194.1:1 to 320.9:1 (p < 0.001).

CONCLUSIONS

In our hospital, progressively increasing numbers of annual births in combination with an increased incidence of women with high risk pregnancies took place following the revised national childbirth policy. Only the increase in medical and nursing, but not midwifery, staff was commensurate with workload. Remedial measures are urgently required before the anticipated progressive increase in care demand would overwhelm maternity care with potentially disastrous consequences.

Increasing specialist intensity at weekends to improve outcomes for patients undergoing emergency hospital admission: the HiSLAC two-phase mixed-methods study

Background

NHS England’s 7-day services policy comprised 10 standards to improve access to quality health care across all days of the week. Six standards targeted hospital specialists on the assumption that their absence caused the higher mortality associated with weekend hospital admission: the ‘weekend effect’. The High-intensity Specialist-Led Acute Care (HiSLAC) collaboration investigated this using the implementation of 7-day services as a ‘natural experiment’.

Objectives

The objectives were to determine whether or not increasing specialist intensity at weekends improves outcomes for patients undergoing emergency hospital admission, and to explore mechanisms and cost-effectiveness.

Design

This was a two-phase mixed-methods observational study. Year 1 focused on developing the methodology. Years 2–5 included longitudinal research using quantitative and qualitative methods, and health economics.

Methods

A Bayesian systematic literature review from 2000 to 2017 quantified the weekend effect. Specialist intensity measured over 5 years used self-reported annual point prevalence surveys of all specialists in English acute hospital trusts, expressed as the weekend-to-weekday ratio of specialist hours per 10 emergency admissions. Hospital Episode Statistics from 2007 to 2018 provided trends in weekend-to-weekday mortality ratios. Mechanisms for the weekend effect were explored qualitatively through focus groups and on-site observations by qualitative researchers, and a two-epoch case record review across 20 trusts. Case-mix differences were examined in a single trust. Health economics modelling estimated costs and outcomes associated with increased specialist provision.

Results

Of 141 acute trusts, 115 submitted data to the survey, and 20 contributed 4000 case records for review and participated in qualitative research (involving interviews, and observations using elements of an ethnographic approach). Emergency department attendances and admissions have increased every year, outstripping the increase in specialist numbers; numbers of beds and lengths of stay have decreased. The reduction in mortality has plateaued; the proportion of patients dying after discharge from hospital has increased. Specialist hours increased between 2012/13 and 2017/18. Weekend specialist intensity is half that of weekdays, but there is no relationship with admission mortality. Patients admitted on weekends are sicker (they have more comorbid disease and more of them require palliative care); adjustment for severity of acute illness annuls the weekend effect. In-hospital care processes are slightly more efficient at weekends; care quality (errors, adverse events, global quality) is as good at weekends as on weekdays and has improved with time. Qualitative researcher assessments of hospital weekend quality concurred with case record reviewers at trust level. General practitioner referrals at weekends are one-third of those during weekdays and have declined further with time.

Limitations

Observational research, variable survey response rates and subjective assessments of care quality were compensated for by using a difference-in-difference analysis over time.

Conclusions

Hospital care is improving. The weekend effect is associated with factors in the community that precede hospital admission. Post-discharge mortality is increasing. Policy-makers should focus their efforts on improving acute and emergency care on a ‘whole-system’ 7-day approach that integrates social, community and secondary health care.

Future work

Future work should evaluate the role of doctors in hospital and community emergency care and investigate pathways to emergency admission and quality of care following hospital discharge.

Funding

This project was funded by the National Institute for Health Research (NIHR) Health Services and Delivery Research programme and will be published in full in Health Services and Delivery Research; Vol. 9, No. 13. See the NIHR Journals Library website for further project information.

[Association between time of birth and resuscitation outcomes in extremely preterm infants]

OBJECTIVE

To study whether there are differences in the resuscitation process and early outcomes between the extremely preterm infants delivered on off-hours (6 pm to 8 am of working days, weekends, and national holidays) and those delivered on working hours.

METHODS

A retrospective analysis was performed on the medical data of extremely preterm infants who were born in the Peking University Third Hospital from January 1, 2010 to December 31, 2020 and transferred to the neonatal intensive care unit (NICU). According to the time of birth, they were divided into two groups:working hours (n=77) and off-hours (n=98). The resuscitation process and early outcomes were compared between the two groups.

RESULTS

Compared with the working hours group, the off-hours group had a significantly lower proportion of infants with the use of full-dose dexamethasone before delivery (P < 0.05) and a significantly higher proportion of infants with a 1-minute Apgar score of < 7, positive pressure ventilation, or tracheal intubation (P < 0.05). The incidence rates of neonatal respiratory distress syndrome and intrauterine pneumonia in the off-hours group were significantly higher than those in the working hours group (P < 0.05).

CONCLUSIONS

Extremely preterm infants delivered on off-hours tend to have a low Apgar score at 1 minute after birth, with a higher proportion of infants requiring positive pressure ventilation or tracheal intubation during resuscitation than those delivered on working hours, and they tend to develop neonatal respiratory distress syndrome and intrauterine pneumonia. This suggests that it is important to make adequate preparations in terms of personnel and supplies for resuscitation of extremely preterm infants after birth and that NICUs should develop a detailed management plan for extremely preterm infants at each period of time before, during, and after birth.

Preventing the human factor: organizational aspects linked to fetal asphyxia

BACKGROUND

Perinatal asphyxia can cause cerebral palsy and hypoxic - ischemic encephalopathy. They are public health problems because they cause permanent disability.

METHODS

This is a retrospective, analytical, observational study. 162 cases of mothers whose children experienced fetal asphyxia were compare to 361 controls where this condition did not occur. The variables analyzed were classified as: prepartum, intrapartum and organizational.

RESULTS

Assisted Reproductive Technology obtained pregnancies, smoking, maternal body mass index, lack of one to one assistance during labor, birth on a day of high volume activity increased the risk of fetal asphyxia, as well as other traditionally linked factors like shoulder distocia or age over 35 years.

CONCLUSIONS

Cerebral palsy cannot always be prevented because it is a syndrome with a multitude of potential causes. But a small number of cases is likely to be linked to acute intrapartum events that could be limited by changing organizational policies such as staff training and implementing team work and discussion. Our paper proposes strategies to try and modify organizational risk factors and therefore limit the incidence of fetal asphyxia.

Busy day effect on intrapartum adverse maternal outcomes - a population-based study of 601 247 singleton deliveries

BACKGROUND

This was a retrospective population-based study, utilizing the data of 601 247 singleton hospital deliveries collected from the Finnish Medical Birth Register (MBR) in 2006-2016. The aim of this study was to analyse the busy day effect on intrapartum adverse maternal outcomes.

METHODS

To implement the study design, daily delivery frequencies and ranges (min-max) for each delivery unit (n = 26) were stratified to the daily delivery volume distributions by the delivery unit's annual delivery volume and profile: Category (C)1 < 1000, C2 1000-1999, C3 2000-2999, C4 ≥ 3000 and C5 the profile of university hospitals. To study the busy day effect, the quiet, optimal and busy days were defined by calculating the number of days (%) with the lowest and highest daily delivery frequencies and summed to the nearest 10 % in each hospital category. Optimal days were determined by calculating approximately 80 % of deliveries occurring between the lowest 10 %, and highest 10 % in each hospital category. Crude and adjusted odd ratios (ORs) with 99 % confidence intervals (CIs) were used to analyze the busy day effect on adverse maternal outcomes, blood transfusions, manual removal of the placenta and obstetric anal sphincter injuries, separately in each hospital category.

RESULTS

The busy day effect was associated with the 28 % (99 % CI 8-52 %) and 25 % (99 % CI 11-40 %) increased need for blood transfusions in C2 and university hospitals (C5), respectively, whereas 22 % (99 % CI 10-31 %) less blood transfusions were needed at university hospitals during quiet days. In C3 hospitals, 83 % (99 % CI 65-92 %) less blood transfusions were needed during busy days. Obstetric and anal sphincter injury rates declined during quiet days by 22 % (99 % CI 3-38 %) only in university hospitals.

CONCLUSIONS

The findings of this study identify no specific pattern to the busy day effect for adverse maternal outcomes defined as manual removal of the placenta or obstetric and anal sphincter injuries. However, both quiet and busy days seem to be associated with increased or decreased need for blood transfusions in different sized delivery units. Findings also suggest that quiet days are associated with a decreased number of obstetric and anal sphincter injuries.

Maternity ward crowding, procedure use, and child health

This paper studies the impact of day-to-day variation in maternity ward crowding on medical procedure use and the health of infants and mothers. Exploiting data on the universe of Danish admissions to maternity wards in the years 2000-2014, we first document substantial day-to-day variation in admissions. Exploiting residual variation in crowding, we find that maternity wards change the provision of medical procedures and care on crowded days relative to less crowded days, and they do so in ways that alleviate their workload. We find very small and precisely estimated effects of crowding on child and maternal health. Thus our results suggest that, for the majority of uncomplicated births, maternity wards in Denmark can cope with the observed inside-ward variation in daily admissions without detectable health risks.

Time of Birth and the Risk of Severe Unexpected Complications in Term Singleton Neonates

OBJECTIVE

To assess whether there is a relationship between evening, night, and weekend births and severe unexpected neonatal morbidity in low-risk term singleton births.

METHODS

We conducted a population-based, cross-sectional analysis. Severe unexpected neonatal morbidity as defined by the National Quality Forum specification 0716 was derived from linked birth certificate and hospital discharge summaries for 1,048,957 low-risk singleton term Californian births during 2011 through 2013. The association between the nursing shift (7 am-3 pm vs 3-11 pm and 11 pm -7 am) and weekday compared with weekend birth and the risk of severe unexpected neonatal morbidity was estimated using mixed effects logistic regression models.

RESULTS

Severe unexpected neonatal morbidity was higher among births during the 3-11 pm evening shift (2.1%) and the 11 pm-7 am night shift (2.1%), compared with those during the 7 am-3 pm day shift (1.8%). The adjusted odds ratios (ORs) were 1.10 (95% CI 1.06-1.13) for the evening shift and 1.15 (1.11-1.19) for the night shift. The adjusted ORs of severe unexpected neonatal morbidity were increased only on Sunday, as compared with other days (adjusted OR 1.08, 95% CI 1.02-1.14). When our analysis was by perinatal region, the increase was seen in four of the nine perinatal regions.

CONCLUSION

After risk adjustment, the risk of severe unexpected morbidity in the low-risk singleton California birth cohort was significantly increased on Sundays and births during evening and night shifts. These elevations were detected in only four of California's nine perinatal regions. Further analysis at the individual hospital level is warranted.

Resuscitation outcomes for weekend deliveries of very low birthweight infants

OBJECTIVE

To characterise the association between weekend (Saturday and Sunday) deliveries of very low birthweight (VLBW) infants and delivery room outcomes in the 'golden hour' after birth.

DESIGN AND SETTING

A retrospective cohort study using California Perinatal Quality Care Collaborative data from participating neonatal intensive care units.

PATIENTS

The study population after exclusions was 26 515 VLBW infants born in California from 2010 to 2016.

MAIN OUTCOME MEASURES

Delivery room outcomes assessed included: chest compressions, epinephrine, intubation prior to continuous positive airway pressure ventilation, 5 min Apgar <4, admission hypothermia and death within 12 hours. To adjust for potential confounders, we fit multivariate regression models controlling for two sets of infant, maternal and hospital characteristics.

RESULTS

Infants delivered on weekends were less likely to have been prenatally diagnosed with intrauterine growth restriction but were otherwise not significantly different in gestational age, ethnicity, sex or maternal risk factors than those born during weekdays. Caesarean deliveries were less common on weekends, while vaginal deliveries were consistent across all days. After adjusting for sex and race, weekend delivery was associated with delivery room chest compressions (OR: 1.12, 95% CI 1.02 to 1.24) and lower 5 min Apgar (OR: 1.11, 95% CI 1.01 to 1.21).

CONCLUSION

In this population-based study of VLBW infants, there was an increase in chest compressions for infants born on the weekend. More research is needed on the differences between populations born on weekdays versus weekends, and how these may contribute to observed associations.

Weekend and off-hour effects on the incidence of cerebral palsy: contribution of consolidated perinatal care

Objective

This study estimated the effects of weekend and off-hour childbirth and the size of perinatal medical care center on the incidence of cerebral palsy.

Methods

The cases were all children with severe cerebral palsy born in Japan from 2009 to 2012 whose data were stored at the Japan Obstetric Compensation System for Cerebral Palsy database, a nationally representative database. The inclusion criteria were the following: neonates born between January 2009 and December 2012 who had a birth weight of at least 2000 g and gestational age of at least 33 weeks and who had severe disability resulting from cerebral palsy independent of congenital causes or factors during the neonatal period or thereafter. Study participants were restricted to singletons and controls without report of death, scheduled cesarean section, or ambulance transportation. The controls were newborns, randomly selected by year and type of delivery (normal spontaneous delivery without cesarean section and emergency cesarean section) using a 1:10 case to control ratio sampled from the nationwide Japan Society of Obstetrics and Gynecology database.

Results

A total of 90 cerebral palsy cases and 900 controls having normal spontaneous delivery without cesarean section were selected, as were 92 cerebral palsy cases and 920 controls with emergent cesarean section. A significantly higher risk for cerebral palsy was found among cases that underwent emergent cesarean section on weekends (odds ratio [OR] 1.72, 95% confidence interval [CI] 1.06–2.81) and during the night shift (OR 2.29, 95% CI 1.30–4.02). No significant risk was found among normal spontaneous deliveries on weekends (OR 1.63, 95% CI 0.97–2.73) or during the quasi-night shift (OR 1.26, 95% CI 0.70–2.27). Regional perinatal care centers showed significantly higher risk for cerebral palsy in both emergent cesarean section (OR 2.35, 95% CI 1.47–3.77) and normal spontaneous delivery (OR 2.92, 95% CI 1.76–4.84).

Conclusion

Labor on weekends, during the night shift, and at regional perinatal medical care centers was associated with significantly elevated risk for cerebral palsy in emergency cesarean section.

The effect of off-hour delivery on severe maternal morbidity: a population-based cohort study

BACKGROUND

Severe maternal morbidity is an indicator for quality of maternal care. Recently, there has been growing interest in identifying which provision factors affect the quality of maternity care. The extent to off-hour delivery on SMM rates contributes to individual or provision factor in Korea has not been studied. This study aimed to determine the relationship between off-hour delivery and SMM during childbirth hospitalization.

METHODS

This is a population-based retrospective cohort study. Data were extracted from the Korean National Health Insurance Service-National Sample Cohort for 90 072 cases of delivery in Korea between 2003 and 2013. The main outcome was SMM which was determined using the Center for Disease Control and Prevention's algorithm. A generalized estimating equation model with log link was performed for the relationship with SMM and day/time of delivery adjusted covariates.

RESULTS

Of the 90 072 delivery cases, 2085 (2.31%) had SMM. Women who were on weekdays at night time or on weekend delivery had a higher risk of SMM compared with those who were on weekdays at daytime (RR 1.26, 95% CI 1.10-1.46, and RR 1.58, 95% CI 1.30-1.93, respectively).

CONCLUSION

Weekday at night time or weekend delivery was related to the risk of SMM. Policymakers should provide financial support and systematically allocate adequate human resources and labour facilities in vulnerable areas, as well as during weekends and night times to improve the quality of intrapartum and postpartum maternity care.

Working-hour phenomenon in obstetrics is an attainable target to improve neonatal outcomes

BACKGROUND

Giving birth in a health care facility does not guarantee high-quality care or favorable outcomes. The working-hour phenomenon describes adverse outcomes of institutional births outside regular working hours.

OBJECTIVES

The objectives of the study were to evaluate whether the time of birth is associated with adverse neonatal outcomes and to identify the riskiest time periods for obstetrical care.

STUDY DESIGN

This nationwide retrospective cohort study analyzed data from 2008 to 2016 from all 82 obstetric departments in Austria. Births at ≥ 23+0 gestational weeks with ≥500 g birthweight were included. Independent variables were categorized by the time of day vs night as core time (morning, day) and off hours (evening, nighttime periods 1-4). The composite primary outcome was adverse neonatal outcome, defined as arterial umbilical cord blood pH <7.2, 5 minute Apgar score <7, and/or admission to the neonatal intensive care unit. Multivariate logistic regression was used to develop a model to predict these adverse neonatal outcomes.

RESULTS

Of 462,947 births, 227,672 (49.2%) occurred during off hours and had a comparable distribution in all maternity units, regardless of volume (<500 births per year: 50.3% during core time vs 49.7% during off hours; ≥500 births per year: 50.7% core time vs 49.3% off hours; perinatal tertiary center: 51.2% core time vs 48.8% off hours). Furthermore, most women (35.8-35.9%) gave birth between 2:00 and 5:59 am (night periods 3 and 4). After adjustment for covariates, we found that adverse neonatal outcomes also occurred more frequently during these night periods 3 and 4, in addition to the early morning period (night 3: odds ratio, 1.05; 95% confidence interval, 1.03-1.08; P < .001; night 4: odds ratio, 1.08; 95% confidence interval, 1.05-1.10; P < .001; early morning period: odds ratio, 1.05; 95% confidence interval, 1.02-1.08; P < .001). The adjusted odds for adverse outcomes were lowest for births between 6:00 and 7:59 pm (odds ratio, 0.96; 95% confidence interval, 0.93-0.99; P = .006).

CONCLUSION

There is an increased risk of adverse neonatal outcomes when giving birth between 2:00 and 7:59 am. The so-called working-hour phenomenon is an attainable target to improve neonatal outcomes. Health care providers should ensure an optimal organizational framework during this time period.

Clinical Capital and the Risk of Maternal Labor and Delivery Complications: Hospital Scheduling, Timing, and Cohort Turnover Effects

The establishment of interventions to maximize maternal health requires the identification of modifiable risk factors. Toward the identification of modifiable hospital-based factors, we analyze over 2 million births from 2005 to 2010 in Texas, employing a series of quasi-experimental tests involving hourly, daily, and monthly circumstances where medical service quality (or clinical capital) is known to vary exogenously. Motivated by a clinician's choice model, we investigate whether maternal delivery complications (1) vary by work shift, (2) increase by the hours worked within shifts, (3) increase on weekends and holidays when hospitals are typically understaffed, and (4) are higher in July when a new cohort of residents enter teaching hospitals. We find consistent evidence of a sizable statistical relationship between deliveries during nonstandard schedules and negative patient outcomes. Delivery complications are higher during night shifts (OR = 1.21, 95% CI: 1.18-1.25), and on weekends (OR = 1.09, 95% CI: 1.04-1.14) and holidays (OR = 1.29, 95% CI: 1.04-1.60), when hospitals are understaffed and less experienced doctors are more likely to work. Within shifts, we show deterioration of occupational performance per additional hour worked (OR = 1.02, 95% CI: 1.01-1.02). We observe substantial additional risk at teaching hospitals in July (OR = 1.28, 95% CI: 1.14-1.43), reflecting a cohort-turnover effect. All results are robust to the exclusion of noninduced births and intuitively falsified with analyses of chromosomal disorders. Results from our multiple-test strategy indicate that hospitals can meaningfully attenuate harm to maternal health through strategic scheduling of staff.

Association between time of delivery and poor perinatal outcomes -An evaluation of deliveries in a tertiary hospital, South-east Nigeria

OBJECTIVES

Nigeria account for a significant proportion of adverse perinatal outcome. Nigerian studies assessing impact of time of delivery on perinatal outcome are scarce. This study evaluates any associations between time of delivery and perinatal outcome.

METHODS

This was a cross-sectional study at the Federal Teaching Hospital, Abakaliki from 01 January 2016 to 30 June 2018. Data were analysed with IBM SPSS version 25.0.

RESULTS

A total of 4,556 deliveries were analysed. Majority (72.2%) delivered on week days and 27.8% on weekends. Over 90% had 1st and 5th minutes Apgar scores ≥7. There was statistical difference in NICU admission between morning and evening hours (p = 0.009) but not between morning and night hours (p = 0.795). ENND during evening was twice higher (1.2%) than morning (0.5%); p = 0.047 and night hours (0.6%); p = 0.623.There was no difference in the risk of fresh stillbirths between morning and evening (p = 0.560), as well as morning and night hours (p = 0.75), there was also no difference in fresh stillbirths between week days and weekends (p = 0.895). There was no difference in low Apgar scores at 1st minute between morning and evening (p = 0.053) and night (p = 0.221), and between weekdays and weekends (p = 0.524). Similarly, there was no difference in low 5th minute Apgar scores between morning and evening (p = 0.165) and night (p = 0.944), as well as between week days and weekends (p = 0.529). However, ENND was twice (p = 0.085) and 1.3 times higher (p = 0.526) for evening and night hours respectively, while there was no difference between weekends and week days (p = 0.652).

CONCLUSION

NICU admission and ENND were commoner during evening hours. However, work hours did not affect the rate of stillbirth and low Apgar scores during weekdays and weekends. It is pertinent for each obstetric unit to identify and modify factors responsible for unfavourable outcomes during various shifts, with the aim of improving perinatal health.

Magnitude and modifiers of the weekend effect in hospital admissions: a systematic review and meta-analysis

OBJECTIVE

To examine the magnitude of the weekend effect, defined as differences in patient outcomes between weekend and weekday hospital admissions, and factors influencing it.

DESIGN

A systematic review incorporating Bayesian meta-analyses and meta-regression.

DATA SOURCES

We searched seven databases including MEDLINE and EMBASE from January 2000 to April 2015, and updated the MEDLINE search up to November 2017. Eligibility criteria: primary research studies published in peer-reviewed journals of unselected admissions (not focusing on specific conditions) investigating the weekend effect on mortality, adverse events, length of hospital stay (LoS) or patient satisfaction.

RESULTS

For the systematic review, we included 68 studies (70 articles) covering over 640 million admissions. Of these, two-thirds were conducted in the UK (n=24) or USA (n=22). The pooled odds ratio (OR) for weekend mortality effect across admission types was 1.16 (95% credible interval 1.10 to 1.23). The weekend effect appeared greater for elective (1.70, 1.08 to 2.52) than emergency (1.11, 1.06 to 1.16) or maternity (1.06, 0.89 to 1.29) admissions. Further examination of the literature shows that these estimates are influenced by methodological, clinical and service factors: at weekends, fewer patients are admitted to hospital, those who are admitted are more severely ill and there are differences in care pathways before and after admission. Evidence regarding the weekend effect on adverse events and LoS is weak and inconsistent, and that on patient satisfaction is sparse. The overall quality of evidence for inferring weekend/weekday difference in hospital care quality from the observed weekend effect was rated as 'very low' based on the Grading of Recommendations, Assessment, Development and Evaluations framework.

CONCLUSIONS

The weekend effect is unlikely to have a single cause, or to be a reliable indicator of care quality at weekends. Further work should focus on underlying mechanisms and examine care processes in both hospital and community.

PROSPERO REGISTRATION NUMBER

CRD42016036487.

Common challenges managing bed and staff availability on labor and delivery units in the United States: A qualitative analysis

BACKGROUND

Managers of labor and delivery units need to ensure that their limited supply of beds and nursing staff are adequately available, despite uncertainty with respect to patient needs. The ability to address this challenge has been associated with patient outcomes; however, best practices have not been defined.

METHODS

We conducted a secondary analysis of 96 interviews with nurse and physician managers from 48 labor and delivery units across the United States. Included units represented a diverse range of characteristics, but skewed toward higher volume teaching hospitals. The prior study scored management practice based on their proactiveness (ability to mitigate challenges before they occur). Based on emerging themes, we identified common challenges in managing bed and staff availability and performed an analysis of positive deviants to identify an additional criterion for effective management performance.

RESULTS

We identified four key challenges common to all labor and delivery units, (1) scheduling planned cases, (2) tracking patient flow, (3) monitoring bed and staff availability in the moment, and (4) adjusting bed and staff availability in the moment. We also identified "systematicness" (ability to address challenges in a consistent and reliable manner) as an emerging criterion for effective management. We observed that being proactive and systematic represented distinct characteristics, and units with both proactive and systematic practices appeared best positioned to effectively manage limited beds and staffing.

DISCUSSION

Labor and delivery unit managers should distinctly assess both the proactiveness and systematicness of their existing management practices and consider how their practices could be modified to improve care.

Foetal Morbidity Depending on the Day and Time of Delivery

Introduction It is known that perinatal mortality is increased with births at night and at the weekend. The aim of the study was to investigate whether there is also an association between the time of delivery (weekday, night, weekend) and perinatal morbidity. Material and Methods All births at Hannover Medical College between 2000 and 2014 were included in a retrospective data analysis. Multiple births, primary sections, severe foetal malformations and intrauterine deaths were not included. A 5-minute Apgar score ≤ 5 and cord arterial pH < 7.10 were defined as perinatal morbidity. Besides the time of delivery, different variables that are regarded as risk factors for increased perinatal morbidity were studied. Univariate logistical regression analysis was performed, followed by multivariate analysis. Results 18 394 deliveries were included in the study. Pathological prepartum Doppler, medical induction of labour and delivery at night and/or at the weekend significantly increased the probability of an Apgar score ≤ 5 after 5 minutes. The probability that a child will have cord arterial pH < 7.1 post partum is significantly increased with a BMI > 25 before pregnancy, primiparity, medical induction of labour, peripartum administration of oxytocic agents, when the delivery took place at night and weekend combined, but also when the delivery took place at night or at the weekend/on a public holiday. Multivariate regression analysis showed that a time of delivery at night and/or at the weekend or on a public holiday is not a prognostic factor for a 5-minute Apgar score ≤ 5 (p = 0.2377) but is a prognostic factor for cord arterial pH < 7.1 (p = 0.0252). Conclusion The time of delivery at night or at the weekend/on a public holiday increases the risk for cord arterial pH < 7.1 by ~ 30% compared with delivery on a weekday. However, the time of delivery at night or at the weekend/on a public holiday does not increase the risk for the baby of having a 5-minute Apgar score ≤ 5.

Parâmetros utilizados na avaliação de bem-estar do bebê no nascimento

Objectivo: identificar parâmetros que se utilizan para evaluar el bienestar del recién nacido.Síntesis del contenido: revisión integrativa de la literatura, realizada en las bases PubMed y Biblioteca Virtual de Salud (bvs), que utilizó los descriptores “apgar score”, “neonatal outcomes”, “fetal vitality” y “health services evaluation”. El recorte temporal fue de enero del 2011 a diciembre del 2016. Se importaron los resúmenes para el software Endnote Web®, para la remoción de duplicados y los remanentes exportados para el software Covidence®, lo que permitió la selección de la muestra final por dos investigadoras, de forma independiente. La muestra final incluyó 17 estudios. Los parámetros más utilizados fueron admisión del neonato en Unidad de Cuidados Intensivos en las primeras 24 a 48 horas de vida y el índice de Apgar, pero hubo variaciones en la mensuración de esos parámetros entre los estudios. Otros parámetros fueron: peso al nacer, temperatura corporal, natimortalidad y mortalidad neonatal. El Apgar, a pesar de utilizado mundialmente, posibilita subjetividad en la evaluación de algunas variables; este puede evaluar la respuesta del bebé a las maniobras empleadas en el atendimiento en sala de parto, pero no debe ser un parámetro decisorio para instituir o no maniobras de reanimación.Conclusión: algunos parámetros fueron comunes entre los estudios, sin embargo pueden agregarse otros parâmetros al abordar patologías específicas. Se considera importante entrenar enfermeiros en la medición del Apgar, pues son professionales responsables por el cuidado de la madre y el bebé 24 horas del día y, en muchos servicios, por la primera atención del recién nacido.