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Lo WY, Chien LY, Hwang FM, Huang N, Chiou ST. From job stress to intention to leave among hospital nurses: A structural equation modelling approach. J Adv Nurs 2017; 74:677-688. [PMID: 29047163 DOI: 10.1111/jan.13481] [Citation(s) in RCA: 59] [Impact Index Per Article: 8.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 10/03/2017] [Indexed: 12/14/2022]
Abstract
AIMS The aim of this study was to examine the structural relationships linking job stress to leaving intentions through job satisfaction, depressed mood and stress adaptation among hospital nurses. BACKGROUND High turnover among nurses is a global concern. Structural relationships linking job stress to leaving intentions have not been thoroughly examined. DESIGN Two nationwide cross-sectional surveys of full-time hospital staff in 2011 and 2014. METHODS The study participants were 26,945 and 19,386 full-time clinical nurses in 2011 and 2014 respectively. Structural equation modelling was used to examine the interrelationships among the study variables based on the hypothesized model. We used cross-validation procedures to ensure the stability and validity of the model in the two samples. RESULTS There were five main paths from job stress to intention to leave the hospital. In addition to the direct path, job stress directly affected job satisfaction and depressed mood, which in turn affected intention to leave the hospital. Stress adaptation mitigated the effects of job stress on job satisfaction and depressed mood, which led to intention to leave the hospital. Intention to leave the hospital preceded intention to leave the profession. Those variables explained about 55% of the variance in intention to leave the profession in both years. CONCLUSION The model fit was good for both samples, suggesting validity of the model. Strategies to decrease turnover intentions among nurses could focus on creating a less stressful work environment, increasing job satisfaction and stress adaptation and decreasing depressed mood. Hospitals should cooperate in this issue to decrease nurse turnover.
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Wein N, Simmons T, Gumienny F, Huang N, Heller K, Yurkoski J, Rodino-Klapac L, Muntoni F, Flanigan K. A single neonatal injection of an AAV9.U7snRNA virus mediating skipping of dmd exon 2 allows dystrophin expression preventing apparition of pathologic features in the Dup2 mouse one year post injection. Neuromuscul Disord 2017. [DOI: 10.1016/j.nmd.2017.06.339] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/18/2022]
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Huang IA, Jaing TH, Wu CT, Chang CJ, Hsia SH, Huang N. A tale of two systems: practice patterns of a single group of emergency medical physicians in Taiwan and China. BMC Health Serv Res 2017; 17:642. [PMID: 28893261 PMCID: PMC5594439 DOI: 10.1186/s12913-017-2606-4] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/11/2017] [Accepted: 09/07/2017] [Indexed: 12/02/2022] Open
Abstract
Background The quality of pediatric emergency care has been a major concern in health care. Following a series of health system reforms in China, it is important to do this assessment of pediatric emergency care, and to explore potential influences of health care system. This study aimed to compare practice differences in treating children with respiratory illnesses in two emergency department (ED) settings within different health care systems: China and Taiwan. Methods A pooled cross-sectional hospital-based study was conducted in two tertiary teaching hospitals in Xiamen, China and Keelung, Taiwan belong to the same hospital chain group. A team of 21 pediatricians rotated between the EDs of the two hospitals from 2009 to 2012. There were 109,705 ED encounters treated by the same team of pediatricians and 6596 visits were analyzed for common respiratory illnesses. Twelve quality measures in process and outcomes of asthma, bronchiolitis and croup were reported. Descriptive statistics and multiple logistic regression models were applied to assess. In order to demonstrate the robustness of our findings, we analyzed the data using an alternative modeling technique, multilevel modeling. Results After adjustment, children with asthma presented to the ED in China had a significantly 76% lower likelihood to be prescribed a chest radiograph, and a 98% lower likelihood to be prescribed steroids and discharged home than those in Taiwan. Also, children with asthma presented to the ED in China had significantly 7.76 times higher risk to incur 24-72 h return visits. Furthermore, children with bronchiolitis in China (Odds ratio (OR): 0.21; 95% Confidence interval (CI): 0.17-0.28) were significantly less likely to be prescribed chest radiograph, but were significantly more likely to be prescribed antibiotics (OR: 2.19; 95% CI: 1.46-3.28). Conclusions This study illustrated that although high quality care depends on better assessment of physician performance, the delivery of pediatric emergency care differed significantly between these two healthcare systems after holding the care providers the same and adjusting for important patient characteristics. The findings suggest that the features of the health care system may play a significant role.
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Lai JCY, Weng CS, Huang SM, Huang N, Chou YJ, Wang CC, Wang KL. Incidence and lifetime risk of uterine corpus cancer in Taiwanese women from 1991 to 2010. Taiwan J Obstet Gynecol 2017; 56:68-72. [PMID: 28254229 DOI: 10.1016/j.tjog.2015.09.010] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 09/18/2015] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE Although uterine corpus cancer has been the most common malignancy of the female genital tract in many countries, the lifetime risk of this cancer has not yet been determined among Taiwanese women. The purpose of the study was to describe the change in incidence and the lifetime risk of uterine corpus cancer over a 20-year period from 1991 to 2010 in Taiwan. MATERIALS AND METHODS We conducted a population-based registry study using the released database (available online) from the Taiwan Cancer Registry. RESULTS A total of 15,542 women newly diagnosed with uterine corpus cancer were included in this study. The total number of this cancer increased by 5.7-fold from 1991 to 2010. The annual age-specific rate nearly doubled during the past decade (2001-2010) when compared with the previous decade (1991-2000). Incidence rates were highest in women aged 50-59 years, and increasing incidence rates were observed in each age strata starting from 40 years to 85 years and more, after the year 2000. The lifetime risk of being diagnosed with uterine corpus cancer was 0.39% in 1991-1995, 0.54% in 1996-2000, 0.73% in 2001-2005, and 1.12% in 2006-2010 among Taiwanese women. CONCLUSION According to the observed changes in incidence rate, the burden of uterine corpus cancer in the general female population is expected to increase in the near future. From a public-health perspective, care providers should develop strategies for the prevention, early detection, and intervention to reduce the rapidly increasing incidence of uterine corpus cancer in Taiwan.
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Deschamps F, Moine L, Isoardo T, Tselikas L, Paci A, Mir LM, Huang N, Fattal E, de Baère T. Parameters for Stable Water-in-Oil Lipiodol Emulsion for Liver Trans-Arterial Chemo-Eembolization. Cardiovasc Intervent Radiol 2017; 40:1927-1932. [DOI: 10.1007/s00270-017-1763-5] [Citation(s) in RCA: 18] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/30/2017] [Accepted: 07/27/2017] [Indexed: 11/25/2022]
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Huang HH, Chen CY, Tsay JH, Chou YJ, Huang N. Factors in Maintaining a Stable Patient-Physician Relationship among Individuals with Schizophrenia. Community Ment Health J 2017; 53:578-588. [PMID: 28281097 DOI: 10.1007/s10597-017-0123-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Accepted: 02/20/2017] [Indexed: 10/20/2022]
Abstract
This study aimed to determine whether adequate continuity of care (COC) existed among individuals with schizophrenia, and what the associated determinants were. The National Health Insurance Research Database of Taiwan was used to identify individuals with newly diagnosed schizophrenia from 2000 to 2009. Two outcome indicators were first derived to conduct the continuity assessment based on the usual provider continuity (UPC) index and the continuity of care index (COCI). The average scores of the UPC and COCI were 0.78 and 0.67, respectively. Patients who have been hospitalized, with lower income, and unemployed had significantly poorer continuity of care. In addition, patients were cared for by higher caseload physicians, treated at mental health specialty institutions, and at hospital outpatient settings also experienced significantly poorer continuity. Patients cared for by middle-aged physicians, psychiatrists, and treated at private institutions had significantly better continuity of mental health care.
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Tsai DC, Fang SY, Huang N, Hsu CC, Chen SY, Chiu AWH, Liu CJL. Myopia Development Among Young Schoolchildren: The Myopia Investigation Study in Taipei. Invest Ophthalmol Vis Sci 2017; 57:6852-6860. [PMID: 28002845 DOI: 10.1167/iovs.16-20288] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/24/2022] Open
Abstract
Purpose To investigate the annual incidence of myopia and associated factors among young schoolchildren in Taipei City. Methods The Myopia Investigation Study in Taipei was a citywide, population-based cohort study. During the fall 2013 semester (baseline), a total of 11,590 grade 2 schoolchildren completed ocular examination and were included for further analysis. A parent-completed questionnaire was administered to collect data on risk factors for myopia development. Follow-up visits were arranged biannually over 3 years. The first-year results are reported here. Schoolchildren who were emmetropic/hyperopic at baseline and had myopia (spherical equivalent ≤ -0.5 diopters) in either eye at follow-up were identified as having incident myopia. Results Among 7376 baseline nonmyopic participants, 6794 (92.1%) were examined during the first-year follow-up, and 1856 (25.2%) with incident myopia were identified. The incidence density of myopia was 31.7 (95% confidence interval [CI]: 30.6-32.8) per 100 person-years. Cox hazard proportional regression analysis revealed that participants who were emmetropic at baseline (hazards ratio [HR]: 19.37; 95% CI: 4.84-77.57), who had two myopic parents (HR: 1.21; 95% CI: 1.04-1.42), and who spent ≥5 hours every week on after-school tutoring programs (HR: 1.12; 95% CI: 1.02-1.22) had greater risk for incident myopia. By contrast, protective factors included suburban area of residence (HR: 0.91; 95% CI: 0.83-1.00) and spending ≥30 minutes outdoors after school every weekday (HR: 0.90; 95% CI: 0.82-0.99). Conclusions This study provides population-based data on the annual incidence of myopia among Taiwanese schoolchildren, and found that baseline refractive status, parental myopia, area of residence, time outdoors after school on weekdays, and time spent on after-school tutoring programs are associated with risk of new-onset myopia.
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Li SS, Wu BJ, Deng QY, Guo YB, Leng YX, Huang N. In vitro cytotoxicity evaluation of nano-carbon particles with different sp 2/sp 3 ratios. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2017; 75:854-862. [PMID: 28415539 DOI: 10.1016/j.msec.2017.02.077] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/24/2016] [Revised: 12/18/2016] [Accepted: 02/14/2017] [Indexed: 12/22/2022]
Abstract
Graphitization occurs during the long-term service of a diamond-like carbon (DLC) modified artificial joint. Then, DLC wear debris, which are carbon particles with different sp2/sp3 ratios and sizes ranging from the nano- to micro-meter scale produced. In this paper, to promote the application of DLC coating for artificial joint modification, the cytotoxicity of DLC debris (nano-carbon particles, NCs) with different sp2/sp3 ratios was studied. The microstructure and physical characteristics of NCs with different sp2/sp3 ratios were investigated by Raman spectroscopy, X-ray photoelectron spectroscopy (XPS), Transmission Electron Microscope (TEM) and Dynamic Light Scattering (DLS). Meanwhile, osteoblasts and macrophages were applied to characterize the cytotoxicity of the NCs. In vitro cytotoxicity assay results indicated that cells incubated with NCs of different sp2/sp3 ratios had greater osteogenic capacity, and these particles caused a weaker immune response in comparison with CoCrMo particles. Taken together, the results indicated that NCs with different sp2/sp3 ratios presented a good cytocompatibility than CoCrMo particles. But no significant differences were observed among NCs with different sp2/sp3 ratios. The better cytocompatibility of NCs is mainly attributable to their surface charge.
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Liao TT, Deng QY, Li SS, Li X, Ji L, Wang Q, Leng YX, Huang N. Evaluation of the Size-Dependent Cytotoxicity of DLC (Diamondlike Carbon) Wear Debris in Arthroplasty Applications. ACS Biomater Sci Eng 2017; 3:530-539. [PMID: 33429620 DOI: 10.1021/acsbiomaterials.6b00618] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
Patients with DLC (diamond like carbon)-coated artificial joints may be exposed to a wide size range of DLC wear debris (DW). In this study, the cytotoxicity of DW of different size ranges (0-0.22, 0.22-0.65, 0.65-1.0, and 1.0-5.0 μm) was evaluated. The microstructure and physical characteristics of DW were investigated by Raman spectroscopy, transmission electron microscopy (TEM), scanning electron microscope (SEM), and dynamic light scattering (DLS). Macrophages, osteoblasts, and fibroblasts were incubated with DW of different size ranges respectively followed by cytotoxicity evaluations of inflammatory cytokines, alkaline phosphatase (ALP) assays, and related signal protein expression analysis. The results showed that, except for the size range of 0-0.22 μm, DW cytotoxicity showed a size-dependent (0.22-5.0 μm) decrease with increasing size. Within the range of 0.22-5.0 μm, DW of larger size resulted in lessened inflammatory response and enhanced osteoblastogenesis and fibrogenesis, with increased viability of cells (macrophages, osteoblasts, and fibroblasts), better morphology, less release of pro-inflammatory factors and more release of anti-inflammatory factors. The results demonstrated that DW sizes below 0.22 μm had less negative effects on cell adhesion and growth because of the BSA (bovine serum albumin) encapsulation effect. These findings provide valuable knowledge about the comprehensive mechanism of promotion of inflammatory response and inhibition of osteoblastogenesis and fibrogenesis induced by DW. In conclusion, an effective system of biocompatibility evaluation for different sizes of DW was derived.
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Chen J, Wu F, Yang H, Li F, Jiang Q, Liu S, Kang B, Li S, Adebowale T, Huang N, Li H, Yin Y, Fu C, Yao K. Growth performance, nitrogen balance, and metabolism of calcium and phosphorus in growing pigs fed diets supplemented with alpha-ketoglutarate. Anim Feed Sci Technol 2017. [DOI: 10.1016/j.anifeedsci.2016.12.013] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/17/2022]
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Hsu CC, Huang N, Lin PY, Fang SY, Tsai DC, Chen SY, Tsai CY, Woung LC, Chiou SH, Liu CJL. Risk factors for myopia progression in second-grade primary school children in Taipei: a population-based cohort study. Br J Ophthalmol 2017; 101:1611-1617. [PMID: 28315834 DOI: 10.1136/bjophthalmol-2016-309299] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2016] [Revised: 02/28/2017] [Accepted: 03/08/2017] [Indexed: 11/03/2022]
Abstract
PURPOSE To evaluate the 1-year progression of myopia and associated risk factors in second-grade primary school children. METHODS The myopia investigation study in Taipei provided semiannual visual acuity testing and cycloplegic refraction for all second-grade primary school children (mean age: 7.49 years) in Taipei who provided parental consent. A questionnaire was distributed to the participants' parents before the first and third examinations. We evaluated 1-year follow-up data for children noted to have myopia on the first examination. Multinomial logistic regression models were applied to assess risk factors associated with myopia progression. Myopia progression was categorised, based on the change in spherical equivalent (ΔSE) over 1 year, as slow (ΔSE>-0.5 dioptres (D)), moderate (-1.0 D<ΔSE≤-0.5 D) or fast (ΔSE≤-1.0 D). Of the 4214 myopic children, data were analysed for 3256 (77.3%) who completed the 1-year follow-up evaluation. RESULTS The baseline SE was -1.43±1.1 D. The average ΔSE was -0.42±0.85 D, with 46.96%, 28.50% and 24.54% of the study subjects showing slow, moderate and fast myopia progression, respectively. When compared with slow myopia progression, fast myopia progression was associated with a greater myopic SE at baseline (OR: 0.67, 95% CI: 0.61 to 0.72) and a shorter eye-object distance when doing near work (OR: 1.45, 95% CI: 1.18 to 1.78). More outdoor activity time and self-reported cycloplegic treatment were not associated with slow myopia progression. CONCLUSIONS Children with fast annual myopia progression were more myopic at baseline and had a shorter reading distance. Our study results highlight the importance of having children keep a proper reading distance.
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Lee CW, Fang SY, Tsai DC, Huang N, Hsu CC, Chen SY, Chiu AWH, Liu CJL. Prevalence and association of refractive anisometropia with near work habits among young schoolchildren: The evidence from a population-based study. PLoS One 2017; 12:e0173519. [PMID: 28273153 PMCID: PMC5342266 DOI: 10.1371/journal.pone.0173519] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/10/2016] [Accepted: 02/21/2017] [Indexed: 12/15/2022] Open
Abstract
Background Lifestyle behaviour may play a role in refractive error among children, but the association between near work habits and refractive anisometropia remains unclear. Methods We estimated the prevalence of refractive anisometropia and examined its association with near work activities among 23,114 children in the Myopia Investigation Study in Taipei who were grade 2 elementary school students at baseline in 2013 and 2014. Baseline data on demographics, medical history, parental history and near work habits were collected by parent-administered questionnaire survey. Refractive status was determined by cycloplegic autorefraction. Refractive anisometropia was defined as the spherical equivalent difference ≥ 1.0 diopter between eyes. Results The prevalence of refractive anisometropia was 5.3% (95% confidence interval [CI], 5.0% to 5.6%). The prevalence and severity of refractive anisometropia increased with both myopic and hyperopic refractive error. Multivariate logistic regression analysis revealed that refractive anisometropia was significantly associated with myopia (odds ratio [OR], 2.98; 95% CI, 2.53–3.51), hyperopia (OR, 2.37; 95% CI, 1.98–2.83), degree of astigmatism (OR, 1.005; 95% CI, 1.005–1.006), amblyopia (OR, 2.54; 95% CI, 2.06–3.12), male gender (OR, 0.88; 95% CI, 0.78–0.99) and senior high school level of maternal education (OR, 0.69; 95% CI, 0.52–0.92). Though anisometropic children were more likely to spend more time on near work (crude OR, 1.15; 95% CI, 1.02–1.29) and to have less eye-to-object distance in doing near work (crude OR, 1.15; 95% CI, 1.01–1.30), these associations became insignificant after additional adjustment for ocular, demographic and parental factors. Conclusions The present study provides large-scale, population-based evidence showing no independent association between refractive anisometropia and near work habits, though myopia is associated with refractive anisometropia.
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Duan SJ, Huang N, Zhang BH, Shi JY, He S, Ma J, Yu QQ, Shi B, Jia ZL. New insights from GWAS for the cleft palate among han Chinese population. Med Oral Patol Oral Cir Bucal 2017; 22:e219-e227. [PMID: 28160584 PMCID: PMC5359705 DOI: 10.4317/medoral.21439] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/27/2016] [Accepted: 12/27/2016] [Indexed: 02/05/2023] Open
Abstract
Background Genome wide association studies (GWAS) already have identified tens of susceptible loci for nonsyndromic cleft lip with or without cleft palate (NSCL/P). However, whether these loci associated with nonsyndromic cleft palate only (NSCPO) remains unknown. Material and Methods In this study, we replicated 38 SNPs (Single nucleotide polymorphisms) which has the most significant p values in published GWASs, genotyping by using SNPscan among 144 NSCPO trios from Western Han Chinese. We performed the transmission disequilibrium test (TDT) on individual SNPs and gene-gene (GxG) interaction analyses on the family data; Parent-of-Origin effects were assessed by separately considering transmissions from heterozygous fathers versus heterozygous mothers to affected offspring. Results Allelic TDT results showed that T allele at rs742071 (PAX7) (p=0.025, ORtransmission=3.00, 95%CI: 1.09-8.25) and G allele at rs2485893 (10kb 3’ of SYT14) were associated with NSCPO (p=0.0036, ORtransmission= 0.60, 95%CI: 0.42-0.85). Genotypic TDT based on 3 pseudo controls further confirmed that rs742071 (p-value=0.03, ORtransmission=3.00, 95%CI: 1.09-8.25) and rs2485893 were associated with NSCPO under additive model (p-value= 0.02, ORtransmission= 0.66, 95%CI: 0.47-0.92). Genotypic TDT for epistatic interactions showed that rs4844913 (37kb 3’ of DIEXF) interacted with rs11119388 (SYT14) (p-value=1.80E-08) and rs6072081 (53kb 3’ of MAFB) interacted with rs6102085 (33kb 3’ of MAFB) (p-value=3.60E-04) for NSCPO, suggesting they may act in the same pathway in the etiology of NSCPO. Conclusions In this study, we found that rs742071 and rs2485893 were associated NSCPO from Han Chinese population; also, interactions of rs4844913:rs11119388 and rs6072081:rs6102085 for NSCPO were identified, gene-gene interactions have been proposed as a potential source of the remaining heritability, these findings provided new insights of the previous GWAS. Key words:GWAS, NSCPO, TDT, parent-of-origin effects, epistatic interactions.
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Cancelas JA, Gottschall JL, Rugg N, Graminske S, Schott MA, North A, Huang N, Mufti N, Erickson A, Rico S, Corash L. Red blood cell concentrates treated with the amustaline (S-303) pathogen reduction system and stored for 35 days retain post-transfusion viability: results of a two-centre study. Vox Sang 2017; 112:210-218. [DOI: 10.1111/vox.12500] [Citation(s) in RCA: 26] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/08/2016] [Revised: 01/09/2017] [Accepted: 01/15/2017] [Indexed: 11/29/2022]
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Quan C, Huang N, Yang B, Zhang Y, Huang X, Chen J, Wu J. Abstract P3-14-06: A single-center report of 125 cases of incidental internal mammary lymph node biopsy in free abdominal flap breast reconstruction. Cancer Res 2017. [DOI: 10.1158/1538-7445.sabcs16-p3-14-06] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/16/2022]
Abstract
Abstract
Objective
The aim of the current study is to determine the clinical value of incidental internal mammary lymph node biopsy in free abdominal flap breast reconstruction using internal mammary as recipient vessels and to investigate the risk factors of internal mammary lymph nodes metastasis.
Methods
The clinical data of all free abdominal flap breast reconstructions using internal mammary as recipient vessels performed from November 2006 to April 2016 in Department of Breast Surgery, Fudan University Shanghai Cancer Center were included into the study. The incidence of internal mammary lymph node biopsy and the rate of metastasis were described. The differences between groups were compared using χ2 test. Univariate and multivariate Logistic regression analysis was conducted to evaluate risk factors of internal mammary lymph node metastasis.
Results
A total of 125 patients met the inclusion criteria, 89 (71.2%) of whom adopted unilateral immediate breast reconstructions. 64.8% of them were diagnosed with primary invasive breast cancer, while 27.2% were carcinoma in situ. According to AJCC TNM staging system, the percentages of patients with stage 0, I, II, III were 27.2%, 26.4%, 27.2% and 8.0%.
62 (49.6%) patients had internal mammary lymph nodes harvested. 6.4% (4/62) of those who adopted internal mammary lymph nodes biopsies were diagnosed with internal mammary lymph nodes metastasis, all in immediate breast reconstructions. 72 (57.6%) patients cut off costicartilage (the second or third costicartilage) during the exposure of internal mammary vessels. The excision of costicartilage is not associated with the harvest rate of internal mammary lymph node (P>0.05). All of the 4 patients upstaged their TMN stage of tumor after internal mammary lymph node metastasis and adopted adjuvant chemotherapy and radiotherapy. Up to May 2016, no recurrence or distant metastasis was reported.
In Logistic regression analysis, larger invasive tumor size and axillary lymph node metastasis were found to have correlations with internal mammary lymph node metastasis (larger invasive tumor size: P=0.029; axillary lymph node metastasis: P=0.004), while tumor location or immunohistochemical subtype had no correlations. In addition, axillary lymph node metastasis was proved to be a independent risk factor of internal mammary lymph node metastasis (P=0.036) while tumor size was not.
Conclusions
Internal mammary lymph nodes found incidentally during internal mammary recipient vessel exposure for free flap breast reconstruction could provide surgeons with important information for further treatment. This approach for internal mammary lymph node biopsy revealed an appreciable success rate and should be promoted in clinical practice. The size of invasive tumor and the axillary lymph node metastasis were associated with internal mammary lymph node metastasis.Objective
The aim of the current study is to determine the clinical value of incidental internal mammary lymph node biopsy in free abdominal flap breast reconstruction using internal mammary as recipient vessels and to investigate the risk factors of internal mammary lymph nodes metastasis.
Methods
The clinical data of all free abdominal flap breast reconstructions using internal mammary as recipient vessels performed from November 2006 to April 2016 in Department of Breast Surgery, Fudan University Shanghai Cancer Center were included into the study. The incidence of internal mammary lymph node biopsy and the rate of metastasis were described. The differences between groups were compared using χ2 test. Univariate and multivariate Logistic regression analysis was conducted to evaluate risk factors of internal mammary lymph node metastasis.
Results
A total of 125 patients met the inclusion criteria, 89 (71.2%) of whom adopted unilateral immediate breast reconstructions. 64.8% of them were diagnosed with primary invasive breast cancer, while 27.2% were carcinoma in situ. According to AJCC TNM staging system, the percentages of patients with stage 0, I, II, III were 27.2%, 26.4%, 27.2% and 8.0%.
62 (49.6%) patients had internal mammary lymph nodes harvested. 6.4% (4/62) of those who adopted internal mammary lymph nodes biopsies were diagnosed with internal mammary lymph nodes metastasis, all in immediate breast reconstructions. 72 (57.6%) patients cut off costicartilage (the second or third costicartilage) during the exposure of internal mammary vessels. The excision of costicartilage is not associated with the harvest rate of internal mammary lymph node (P>0.05). All of the 4 patients upstaged their TMN stage of tumor after internal mammary lymph node metastasis and adopted adjuvant chemotherapy and radiotherapy. Up to May 2016, no recurrence or distant metastasis was reported.
In Logistic regression analysis, larger invasive tumor size and axillary lymph node metastasis were found to have correlations with internal mammary lymph node metastasis (larger invasive tumor size: P=0.029; axillary lymph node metastasis: P=0.004), while tumor location or immunohistochemical subtype had no correlations. In addition, axillary lymph node metastasis was proved to be a independent risk factor of internal mammary lymph node metastasis (P=0.036) while tumor size was not.
Conclusions
Internal mammary lymph nodes found incidentally during internal mammary recipient vessel exposure for free flap breast reconstruction could provide surgeons with important information for further treatment. This approach for internal mammary lymph node biopsy revealed an appreciable success rate and should be promoted in clinical practice. The size of invasive tumor and the axillary lymph node metastasis were associated with internal mammary lymph node metastasis.
Citation Format: Quan C, Huang N, Yang B, Zhang Y, Huang X, Chen J, Wu J. A single-center report of 125 cases of incidental internal mammary lymph node biopsy in free abdominal flap breast reconstruction [abstract]. In: Proceedings of the 2016 San Antonio Breast Cancer Symposium; 2016 Dec 6-10; San Antonio, TX. Philadelphia (PA): AACR; Cancer Res 2017;77(4 Suppl):Abstract nr P3-14-06.
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Zhang W, Kong C, Tong M, Chooi W, Huang N, Li R, Chan B. Maturation of human embryonic stem cell-derived cardiomyocytes (hESC-CMs) in 3D collagen matrix: Effects of niche cell supplementation and mechanical stimulation. Acta Biomater 2017; 49:204-217. [PMID: 27890729 DOI: 10.1016/j.actbio.2016.11.058] [Citation(s) in RCA: 73] [Impact Index Per Article: 10.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 11/18/2016] [Accepted: 11/23/2016] [Indexed: 12/11/2022]
Abstract
Cardiomyocytes derived from human embryonic stem cells (hESC-CMs) are regarded as a promising source for regenerative medicine, drug testing and disease modeling. Nevertheless, cardiomyocytes are immature in terms of their contractile structure, metabolism and electrophysiological properties. Here, we fabricate cardiac muscle strips by encapsulating hESC-CMs in collagen-based biomaterials. Supplementation of niche cells at 3% to the number of hESC-CMs enhance the maturation of the hESC-CMs in 3D tissue matrix. The benefits of adding mesenchymal stem cells (MSCs) are comparable to that of adding fibroblasts. These two cell types demonstrate similar effects in promoting the compaction and cell spreading, as well as expression of maturation markers at both gene and protein levels. Mechanical loading, particularly cyclic stretch, produces engineered cardiac tissues with higher maturity in terms of twitch force, elastic modulus, sarcomere length and molecular signature, when comparing to static stretch or non-stretched controls. The current study demonstrates that the application of niche cells and mechanical stretch both stimulate the maturation of hESC-CMs in 3D architecture. Our results therefore suggest that this 3D model can be used for in vitro cardiac maturation study. STATEMENT OF SIGNIFICANCE Cardiomyocytes derived from human embryonic stem cells (hESC-CMs) are regarded as being a promising source of cells for regenerative medicine, drug testing and disease modeling. Nevertheless, cardiomyocytes are immature in terms of their contractile structure, metabolism and electrophysiological properties. In the current study, we have fabricated cardiac muscle strips by encapsulating hESC-CMs in collagen-based biomaterials and demonstrated that supplementation of mesenchymal niche cells as well as provision of mechanical loading particularly stretching have significantly promoted the maturation of the cardiomyocytes and hence improved the mechanical functional characteristics of the tissue strips. Specifically, with 3% niche cells including both fibroblasts and mesenchymal stem cells, a more mature hESC-CMs derived cardiac strip was resulted, in terms of compaction and spreading of cells, and upregulation of molecular signature in both gene and protein expression of maturation. Mechanical loading, particularly cyclic stretch, produces engineered cardiac tissues with higher maturity in terms of molecular signature markers and functional parameters including twitch force, elastic modulus and sarcomere length, when comparing with static stretch or non-stretched controls. The current study demonstrates that the application of niche cells and mechanical stretch both stimulate the maturation of hESC-CMs in 3D architecture, resulting in more mature cardiac strips. Our results contribute to bioengineering of functional heart tissue strips for drug screening and disease modeling.
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Liao TT, Deng QY, Wu BJ, Li SS, Li X, Wu J, Leng YX, Guo YB, Huang N. Dose-dependent cytotoxicity evaluation of graphite nanoparticles for diamond-like carbon film application on artificial joints. Biomed Mater 2017; 12:015018. [DOI: 10.1088/1748-605x/aa52ca] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/24/2022]
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De la Garza Ramos R, Goodwin CR, Abu-Bonsrah N, Jain A, Miller EK, Huang N, Kebaish KM, Sponseller PD, Sciubba DM. Patient and operative factors associated with complications following adolescent idiopathic scoliosis surgery: an analysis of 36,335 patients from the Nationwide Inpatient Sample. J Neurosurg Pediatr 2016; 25:730-736. [PMID: 27564784 DOI: 10.3171/2016.6.peds16200] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
OBJECTIVE The aim of this study was to investigate the incidence of and factors associated with complications following idiopathic scoliosis surgery in adolescents. METHODS The Nationwide Inpatient Sample database was used to identify patients 10-18 years of age who had undergone spinal fusion for adolescent idiopathic scoliosis (AIS) from 2002 to 2011. Twenty-three unique in-hospital postoperative complications, including death, were examined. A series of logistic regressions was used to determine if any demographic, comorbid, or surgical parameter was associated with complication development. Results of multiple logistic regression analyses were reported as odds ratios with 95% confidence intervals. All analyses were performed after the application of discharge weights to produce national estimates. RESULTS A total of 36,335 patients met the study inclusion criteria, 7.6% of whom (95% CI 6.3%-8.9%) developed at least one in-hospital complication. The 3 most common complications were respiratory failure (3.47%), reintubation (1.27%), and implant related (1.14%). Major complications such as death, pancreatitis, disseminated intravascular coagulation, visual loss, spinal cord injury, cardiac arrest, sepsis, nerve root injury, deep vein thrombosis, pulmonary embolism, shock, malignant hyperthermia, myocardial infarction, and iatrogenic stroke each had an incidence ≤ 0.2%. On multiple logistic regression analysis, an increasing age (OR 0.80) was associated with significantly lower odds of complication development; patients who were male (OR 1.80) or who had anemia (OR 2.10), hypertension (OR 2.51), or hypothyroidism (OR 2.27) or underwent revision procedures (OR 5.55) were at a significantly increased risk for complication development. The rates of postoperative complications for posterior, anterior, and combined approaches were 6.7%, 10.0%, and 19.8%, respectively (p < 0.001). Length of fusion (< 8 vs ≥ 8 levels) was not associated with complication development (p = 0.311). CONCLUSIONS Analysis of 36,335 patients who had undergone surgery for AIS revealed that younger patients, male patients, patients with a history of anemia, hypertension, or hypothyroidism, as well as those undergoing revision or anterior or combined approaches may have higher rates of postoperative complications. However, the overall complication rate was low (7.6%), and major complications had a rate ≤ 0.2% for each event. These findings suggest that surgery for AIS remains relatively safe, and future prospective investigations may further help to decrease the postoperative morbidity rate.
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Liao T, Zhang T, Li S, Deng Q, Wu B, Zhang Y, Zhou Y, Guo Y, Leng Y, Huang N. Biological responses of diamond-like carbon (DLC) films with different structures in biomedical application. MATERIALS SCIENCE & ENGINEERING. C, MATERIALS FOR BIOLOGICAL APPLICATIONS 2016; 69:751-9. [DOI: 10.1016/j.msec.2016.07.064] [Citation(s) in RCA: 40] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Track Full Text] [Subscribe] [Scholar Register] [Received: 04/06/2016] [Revised: 06/26/2016] [Accepted: 07/21/2016] [Indexed: 11/28/2022]
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Tsai YH, Huang N, Chien LY, Chiang JH, Chiou ST. Work hours and turnover intention among hospital physicians in Taiwan: does income matter? BMC Health Serv Res 2016; 16:667. [PMID: 27871296 PMCID: PMC5117625 DOI: 10.1186/s12913-016-1916-2] [Citation(s) in RCA: 21] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/04/2016] [Accepted: 11/09/2016] [Indexed: 11/16/2022] Open
Abstract
Background Physician shortage has become an urgent and critical challenge to many countries. According to the workforce dynamic model, long work hours may be one major pressure point to the attrition of physicians. Financial incentive is a common tool to human power retention. Therefore, this large-scale physician study investigated how pay satisfaction may influence the relationship between work hours and hospital physician’s turnover intention. Methods Data were obtained from a nationwide survey of full-time hospital staff members working at 100 hospitals in Taiwan. The analysis sample comprised 2423 full-time physicians. Dependent variable was degree of the physicians’ turnover intention to leave the current hospital. The pay satisfaction was assessed by physicians themselves. We employed ordinal logistic regression models to analyze the association between the number of work hours and turnover intention. To consider the cluster effect of hospitals, we used the “gllamm” command in the statistical software package Stata Version 12.1. Results The results show that 351 (14.5%) of surveyed physicians reported strong intention to leave current hospital. The average work hours per week among hospital physicians was 59.8 h. As expected, work hours exhibited an independent relationship with turnover intention. More importantly, pay satisfaction could not effectively moderate the positive relationship between work hours and intentions to leave current hospital. Conclusions The findings show that overtime work is prevalent among hospital physicians in Taiwan. Both the Taiwanese government and hospitals must take action to address the emerging problem of physician high turnover rate. Furthermore, hospitals should not consider relying solely on financial incentives to solve the problem. This study encouraged tackling work hour problem, which would lead to the possibility of solving high turnover intention among hospital physicians in Taiwan. Electronic supplementary material The online version of this article (doi:10.1186/s12913-016-1916-2) contains supplementary material, which is available to authorized users.
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Hsu CC, Huang N, Lin PY, Tsai DC, Tsai CY, Woung LC, Liu CJL. Prevalence and risk factors for myopia in second-grade primary school children in Taipei: A population-based study. J Chin Med Assoc 2016; 79:625-632. [PMID: 27349942 DOI: 10.1016/j.jcma.2016.02.011] [Citation(s) in RCA: 41] [Impact Index Per Article: 5.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Accepted: 02/26/2016] [Indexed: 10/21/2022] Open
Abstract
BACKGROUND High myopia is associated with multiple ocular morbidities that may lead to irreversible blindness. Because high myopia in an adult is thought to be related to onset of myopia in very early childhood, detecting myopia early and working to improve modifiable risk factors may help reduce the development of high myopia. In this study, we tried to evaluate the prevalence of myopia and associated risk factors in second-grade primary school children in Taipei, Taiwan. METHODS A questionnaire was distributed to the participants' parents, and their written informed consent was obtained before performing eye examinations that included visual acuity testing and cycloplegic autorefraction. Multiple logistic regression models were applied to assess possible risk factors associated with myopia. Myopia was defined as spherical equivalent of -0.50 D or less in either eye. RESULTS The prevalence of myopia in the second graders was 36.4%. After adjustment for other characteristics, the following variables were significantly associated with a higher risk of myopia: male sex [odds ratio (OR)=1.24, p<0.001]; suburban residence (vs. urban; OR=1.10, p=0.02); lower maternal education level (OR=1.25, p<0.001); the presence of myopia in one parent (OR=1.66, p<0.001) or both parents (OR=2.82, p<0.001); time spent on near-work activity every day (OR=1.21, p<0.001); shorter visual distance when doing near-work activity (OR=1.17, p<0.001); and participation in an after-school tutorial program (OR=1.20, p<0.001). By contrast, resting after 30 minutes of near-work activity (OR=0.84, p<0.001) and spending more time participating in outdoor activities on weekends (OR=0.91, p=0.03) were significantly associated with a lower risk of myopia. CONCLUSION Our findings indicate that lifestyle and reading habits impact the development of myopia during early childhood. Behavior modification, such as more time spent outside during the day and limited near-work activity, may be a feasible strategy for curbing the increasingly high prevalence of myopia in Taipei.
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Wang Y, Chen H, Zhu R, Liu G, Huang N, Li W, Yang L, Zhang S, Qi S, Daurès JP, Chiriac AM, Demoly P. Allergic Rhinitis Control Test questionnaire-driven stepwise strategy to improve allergic rhinitis control: a prospective study. Allergy 2016; 71:1612-1619. [PMID: 27332957 DOI: 10.1111/all.12963] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 06/21/2016] [Indexed: 01/07/2023]
Abstract
BACKGROUND Allergic Rhinitis Control Test (ARCT) has been validated for assessing allergic rhinitis (AR) control and identifying severe AR. The aim of the study was to assess the ARCT questionnaire as a tool for stepwise pharmacotherapy. METHODS A standard pharmacotherapy regimen from Step 1 (oral second-generation H1 antihistamine as needed) to Step 5 (oral corticosteroid) was carried out prospectively in a Chinese AR population. The AR patients were initiated with Allergic Rhinitis and its Impact on Asthma (ARIA) appropriate step treatment and assessed with ARCT every 15 days. If ARCT score was equal or above 20 (controlled AR) and maintained for 15 days, the patient would finish the study; if ARCT score was strictly <20 (uncontrolled AR), the patient would receive higher step treatment according to a predefined open design up to Step 5. The different AR control subgroups were compared. RESULTS A total of 255 patients were enrolled in the study; 5 patients dropped out and 2 (0.8%) were controlled at day 0, 85 (34.0%) at day 15, 177 (70.8%) at day 30, 222 (88.8%) at day 45, 241 (96.4%) at day 60 and 242 (96.8%) at day 75. Only 8 (3.2%) patients remained uncontrolled at the endpoint of the study. Patients with ARIA moderate/severe or persistent symptoms, moderate/severe impaired quality of life, asthma history, rhinorrhea and cough symptoms always needed up to Step 4 (nasal corticosteroid plus antihistamine) and prolonged treatments to achieve disease control. CONCLUSIONS The majority of AR can be controlled with standard stepwise treatment. ARCT offers an objective criterion for the stepwise pharmacotherapy of AR.
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Lo WY, Chiou ST, Huang N, Chien LY. Long work hours and chronic insomnia are associated with needlestick and sharps injuries among hospital nurses in Taiwan: A national survey. Int J Nurs Stud 2016; 64:130-136. [PMID: 27794224 DOI: 10.1016/j.ijnurstu.2016.10.007] [Citation(s) in RCA: 24] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/13/2016] [Revised: 10/05/2016] [Accepted: 10/19/2016] [Indexed: 12/23/2022]
Abstract
BACKGROUND Needlestick and sharps injuries are prevalent work-related injuries among nurses. Safety devices prevent only one-quarter of related injuries. More studies of modifiable risk factors are needed. OBJECTIVES To examine whether long work hours and chronic insomnia are associated with needlestick and sharps injuries among hospital nurses in Taiwan. DESIGN Cross-sectional survey. SETTINGS/PARTICIPANTS This analysis included 19,386 full-time bedside nurses working in 104 hospitals across Taiwan. METHODS Participants filled out an anonymous questionnaire from July to September 2014. Chronic insomnia, needlestick injuries, and sharps injuries during the past year were each measured by a yes/no question. Multivariate logistic regression models were applied to examine the effects of long work hours and chronic insomnia on needlestick and sharps injuries, given with control for sex, marital status, educational level, age, years of practice, work unit, and hospital level in the model. RESULTS More than 70% of study nurses worked long hours during the previous week (>50h: 27.5%; 41-50h: 43.2%), and 15.5% of nurses reported chronic insomnia. The percentage of sharps injuries (38.8%) was higher than that for needlestick injuries (22.4%) during the previous year among nurses. After adjusting for potential confounders, logistic regression yielded significant results showing that those who worked 41 to 50h per week, >50h per week, and had chronic insomnia were 1.17 times (95% C.I.=1.04-1.32), 1.51 times (95% C.I.=1.32-1.72), and 1.45 times (95% C.I.=1.25-1.68) more likely to experience needlestick injuries, and 1.29 times (95% C.I.=1.17-1.42), 1.37 times (95% C.I.=1.23-1.53), and 1.56 times (95% C.I.=1.37-1.77) more likely to experience sharps injuries, respectively, than those who worked fewer hours and did not have insomnia. CONCLUSIONS This nationwide nurse survey showed that high rates of needlestick and sharps injuries persist in hospital nurses in Taiwan. The common problems of long work hours and chronic insomnia increase the risk of these injuries. We suggest that hospital managers follow regulations on work hours and optimize shift schedules for nurses to decrease related injuries.
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Owili PO, Muga MA, Chou YJ, Hsu YHE, Huang N, Chien LY. Erratum to: Associations in the continuum of care for maternal, newborn and child health: a population-based study of 12 sub-Saharan Africa countries. BMC Public Health 2016; 16:1064. [PMID: 27724905 PMCID: PMC5056476 DOI: 10.1186/s12889-016-3739-9] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
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Yeh YH, Chou YJ, Huang N, Pu C, Chou P. Seasonal variations of prescriptions for the major syndrome types and manifestations of upper respiratory tract infection in tradition Chinese medicine. Complement Ther Med 2016; 29:213-218. [PMID: 27912949 DOI: 10.1016/j.ctim.2016.10.008] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/24/2015] [Revised: 03/05/2016] [Accepted: 10/06/2016] [Indexed: 10/20/2022] Open
Abstract
OBJECTIVE The aim of this study is to investigate the seasonal variations of prescriptions for the three most common syndrome types and the three major manifestations of upper respiratory infections (URIs) according to the theories of traditional Chinese medicine (TCM). DESIGN This is a cross-sectional study. We examined a random sample comprising 1,000,000 beneficiaries from the National Health Insurance program in 2005. Primary diagnoses including International Classification of Diseases, Ninth Revision, Clinical Modification Codes 460-465 and 487 were regarded as URIs, for which 160,357 prescriptions of Chinese herbal medicine were analyzed. MAIN OUTCOME MEASURES We estimated the adjusted odds ratios (ORs) of three categories of Chinese herbal formulae (CHF) used to treat the three most common types of URIs and another CHF used to alleviate manifestations of URIs throughout the four seasons. RESULTS The OR for pungent-cool CHF used to relieve external syndromes was highest in the summer (OR=1.07). The OR for pungent-warm CHF used to relieve external syndromes was highest in the winter (OR=1.14). The OR for CHF used to alleviate cough and reduce sputum production was highest in the spring (OR=1.00). The OR for CHF used to alleviate nasal discharge and congestion was highest in the winter (OR=1.19). CONCLUSION There are seasonal variations of prescriptions for the major syndrome types and manifestations of URIs in TCM. The results of this study may serve as a reference for TCM physicians in medical preparation and clinical practice.
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