Department of Urology, Auckland City Hospital, University of Auckland, Auckland, New Zealand.
BJU Int. 2010 Jul;106(1):96-101. doi: 10.1111/j.1464-410X.2009.09012.x. Epub 2009 Nov 5.
Symptom prevalence (retrospective cohort) Level of Evidence 2b.
To determine the incidence of acute presentation of urinary calculi (UC) in Auckland, New Zealand, during the period 1999-2007, and whether there was any significant seasonal variation.
The details of all UC within the population presenting acutely to public hospitals in Auckland between 1999 and 2007 were collected using clinical coding searches International Classification of Disease 10th revision (Australian Modification) N132 and N20. Climatic variables for the Auckland region were obtained from the National Institute of Water and Atmospheric Research, New Zealand. The mean atmospheric temperature, hours of sunshine and humidity data were calculated monthly for this period.
During the study there were 7668 acute presentations of UC in the Auckland region. A Poisson regression model showed that the number of presentations was significantly related to temperature (P < 0.001) and hours of sunshine (P = 0.004) but not humidity (P = 0.14). For each degree increase in temperature the number of presentations increased by 2.8% (95% confidence interval 1.3-4.3%). For each 1-h increase in sunshine, the number of presentations increased by 0.2% (0.06-0.33)%.
The acute presentation of UC in Auckland, New Zealand, varies significantly with temperature and hours of sunshine. Humidity was not a significant factor.
症状流行率（回顾性队列）证据水平 2b。
确定在 1999-2007 年期间，新西兰奥克兰地区急性尿路结石（UC）的发病率，以及是否存在明显的季节性变化。
使用临床编码搜索国际疾病分类第 10 版（澳大利亚修订版）N132 和 N20，收集 1999 年至 2007 年期间奥克兰地区所有人群中急性出现的 UC 的详细信息。从新西兰国家水和大气研究所获得奥克兰地区的气候变量。在此期间，每月计算平均大气温度、日照小时数和湿度数据。
在研究期间，奥克兰地区有 7668 例急性 UC 发作。泊松回归模型显示，发作次数与温度（P<0.001）和日照时间（P=0.004）显著相关，但与湿度（P=0.14）无关。温度每升高 1 度，发作次数增加 2.8%（95%置信区间 1.3-4.3%）。日照时间每增加 1 小时，发作次数增加 0.2%（0.06-0.33）%。
新西兰奥克兰地区急性 UC 的发作与温度和日照时间显著相关，湿度不是一个重要因素。
