根据不同场景下的OR值估计RR,置信区间可依次输入转换

场景1:已知对比组发生率计算[1]
比值比(OR)值 对照组发生率(%)
场景2:对比组发生率P未知,但P>10%[2]
比值比(OR)值
场景3:对比组发生率P未知,但P<10%[2]
RR近似等同OR

参考文献:

[1] . Zhang J, Yu KF. What's the relative risk? A method of correcting the odds ratio in cohort studies of common outcomes. JAMA. 1998 Nov 18;280(19):1690-1. PMID 9832001
[2] VanderWeele TJ. On a Square-Root Transformation of the Odds Ratio for a Common Outcome. Epidemiology. 2017;28(6):e58-e60. doi:10.1097/EDE.0000000000000733