比值比计算
Outcome Status | |||
+ | − | ||
Exposure Status | + | a | b |
− | c | d | |
a = Number of exposed cases b = Number of exposed noncases c = Number of unexposed cases d = Number of unexposed noncases | |||
在这些主题中
比值比计算
Outcome Status | |||
+ | − | ||
Exposure Status | + | a | b |
− | c | d | |
a = Number of exposed cases b = Number of exposed noncases c = Number of unexposed cases d = Number of unexposed noncases | |||
