Short-term effect of sunshine duration on daily emergency visits for hip fractures in Beijing, China: a time-series study

IF 3.1 3区 医学 Q2 ENDOCRINOLOGY & METABOLISM
Jia Chen, Xue-Jiao Liu, Geng Liu, Ning Li, Wei Deng, Xiao-Jie Xu, Jing-Hong Gao, Yan-Lin Niu, Bai-Chao Zhang, Zhao-Xing Tian, Xie-Yuan Jiang
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Abstract

Summary

This study employs a time-series analysis to investigate how sunshine duration associates hip fractures in China and found both short and long durations of sunshine increased the risk of hip fractures. The findings can guide strategies for reducing hip fractures and enhance health education on fracture prevention.

Background

Studies on the associations between sunshine duration and emergency visits for hip fractures (HF) are limited. This study aimed to assess the short-term effect of sunshine duration on the risk of emergency visits for HF.

Methods

Daily emergency visits for HF at Beijing Jishuitan Hospital from 2015 to 2019 and contemporaneous meteorological and air pollutant data were collected. A Poisson generalized linear regression model combined with a distributed lag non-linear model was applied to analyze the lag-exposure–response relationship between sunshine duration and HF. Stratified analysis was performed by gender and age.

Results

A total of 10,874 cases were identified. The overall cumulative exposure–response curve showed a U-shaped relationship between sunshine duration and HF. With 7.2 h as the reference (lowest HF emergency visit risk), significant single-day effects of short sunshine duration (0 h, 2.5th percentile) were observed from the 11th to the 13th day, peaking on lag day 13 (RR = 1.033, 95% CI: 1.003–1.065), while its cumulative effects lasted from lag days 0–11 to 0–14, with the highest RR of 1.327 (95% CI: 1.088–1.619) at lag day 0–14. Significant single-day effects of long sunshine duration (12.7 h, 97.5th percentile) occurred from the 10th to the 12th day, peaking on the 12th day (RR = 1.030, 95% CI: 1.000–1.061), but no cumulative lag effects were found. This U-shaped pattern was consistent across subgroups, especially among female patients and those aged 66–79 years; conversely, the risk of HF-related emergency visits decreased with increasing sunshine duration in patients aged 40–65 years with a relatively high uncertainty.

Conclusions

Both short and long durations of sunshine are associated with an increased risk of HFs emergency visits. Females and patients aged 66–79 years might be more vulnerable to short sunshine duration.

日照时间对中国北京髋部骨折每日急诊就诊的短期影响:一项时间序列研究
本研究采用时间序列分析研究日照时间与中国髋部骨折的关系,发现日照时间长短都会增加髋部骨折的风险。研究结果可以指导减少髋部骨折的策略和加强骨折预防的健康教育。背景:关于日照时间与髋部骨折(HF)急诊之间关系的研究是有限的。本研究旨在评估日照时间对心衰急诊就诊风险的短期影响。方法收集2015 - 2019年北京积水潭医院每日心衰急诊人次及同期气象、大气污染物数据。采用Poisson广义线性回归模型结合分布滞后非线性模型分析日照时数与HF的滞后-暴露-响应关系。按性别和年龄进行分层分析。结果共检出10874例。日照时数与HF总体累积暴露响应曲线呈u型关系。以7.2 h为基准(最低HF急诊风险),短日照时间(0 h, 2.5个百分点)的单日效应在第11天至第13天显著,在滞后第13天达到峰值(RR = 1.033, 95% CI: 1.003 ~ 1.065),其累积效应持续在滞后第0 ~ 11天至0 ~ 14天,其中滞后第0 ~ 14天的累积效应最高,RR为1.327 (95% CI: 1.088 ~ 1.619)。日照时间长(12.7 h, 97.5%)的单日效应在第10 ~ 12天显著,在第12天达到峰值(RR = 1.030, 95% CI: 1.000 ~ 1.061),但未发现累积滞后效应。这种u型模式在各个亚组中是一致的,尤其是在女性患者和66-79岁的患者中;相反,在40-65岁的患者中,与hf相关的急诊就诊风险随着日照时间的增加而降低,不确定性相对较高。结论日照时间长短均与hf急诊就诊风险增加有关。女性和66-79岁的患者可能更容易受到短日照时间的影响。
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来源期刊
Archives of Osteoporosis
Archives of Osteoporosis ENDOCRINOLOGY & METABOLISMORTHOPEDICS -ORTHOPEDICS
CiteScore
5.50
自引率
10.00%
发文量
133
期刊介绍: Archives of Osteoporosis is an international multidisciplinary journal which is a joint initiative of the International Osteoporosis Foundation and the National Osteoporosis Foundation of the USA. The journal will highlight the specificities of different regions around the world concerning epidemiology, reference values for bone density and bone metabolism, as well as clinical aspects of osteoporosis and other bone diseases.
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