比例的趋势分析上海医科大学詹绍康许多研究工作者都知道用ｘ２检验法来对几个比例或率作统计比较，然而，由于一般所用ｘ２检验的性质并不一定与分析的目的相匹配，所以分析结果不一定能回答研究者的问题。如对于表１资料：表１铬鼻患病与工龄的关系工龄（岁）１～９１０... Trend Analysis of Proportion Zhan Shaokang, Shanghai Medical University Many researchers all know that the x2 test is used to make statistical comparisons between several ratios or rates. However, since the nature of the x2 test generally used does not necessarily match the purpose of the analysis, The result does not necessarily answer the researcher’s question. As for Table 1 Information: Table 1 chin nasal disease and the relationship between the length of service (years) 1 ~ 910 ...