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三调查资料的统计学分析回顾性调查的统计学分析主要包括危险因素的危险性估计和显著性检验(一)危险性估计:主要包括相对危险性(Relative risk,RR)和绝对危险性(Attributablerisk,AR)的估计.由于从病例一对照资料中无法算出某病(或事件)的发生率,因而不能直接计算危险因素的相对危险性和绝对危险性,故只能比较病例与对照组既往暴露于危险因素的百分比,以算出与相对危险性和绝对危险性密切相关的两个指标-比值比(Odds ratio,OR)和绝对危险百分比(At-tributable risk percent,AR％).象麻风及其亚
Statistical analysis of the three survey data The statistical analysis of the retrospective survey mainly includes the risk assessment of risk factors and significant test (a) the risk assessment: including the relative risk (RR) and absolute risk (Attributablerisk , AR) Since the relative risk and absolute risk of risk factors can not be directly calculated because the incidence of a disease (or event) can not be calculated from case-control data, As a percentage of risk factors to calculate the two odds ratios (ORs) and the At-tributable risk percent (AR%), which are closely related to the relative risk and absolute risk.Like leprosy and its Asia