Enabudoso E J, Okpighe A C, Gharoro E P, Okpere E E
Department of Obstetrics and Gynecology, University of Benin Teaching Hospital, Benin City, Nigeria.
Niger J Clin Pract. 2011 Apr-Jun;14(2):129-31. doi: 10.4103/1119-3077.83999.
To determine if there are monthly variations in the rate of deliveries in Benin City, Nigeria.
A retrospective descriptive study carried out in the three major obstetric centers in Benin City, Nigeria. We extracted the total number of deliveries from the hospitals' records for over a five-year period and analyzed the figures for monthly variation in delivery rates. This was repeated for a standardized 30-day month and the findings noted.
There were 28,686 deliveries during the study period with an average monthly delivery of 2,390. The monthly distribution showed a sinusoidal pattern with peak delivery rates in April-May and October and lowest rates in July-August and December. The months of April, May, and October had delivery rates that were significantly higher than the monthly average delivery rate, while the converse was true for July, August, and December at the 99% confidence interval.
There exists a significant monthly variation in delivery rates in Benin City. This finding will prove valuable in health system planning and in the interpretation of seasonal variations in other reproductive parameters.
确定尼日利亚贝宁城的分娩率是否存在月度变化。
在尼日利亚贝宁城的三个主要产科中心开展一项回顾性描述性研究。我们从医院记录中提取了五年多时间里的分娩总数，并分析了分娩率的月度变化数据。对标准的30天月份重复此操作并记录结果。
研究期间共有28686例分娩，平均每月分娩2390例。月度分布呈正弦模式，4 - 5月和10月分娩率最高，7 - 8月和12月最低。4月、5月和10月的分娩率显著高于月平均分娩率，而在99%置信区间下，7月、8月和12月的情况则相反。
贝宁城的分娩率存在显著的月度变化。这一发现将对卫生系统规划以及其他生殖参数季节性变化的解读具有重要价值。
