Understanding statistical tests in the medical literature: which test should I use?

Table 1 Statistical test suggested

Parameter	Two independent samples	Two paired/ matched samples	Continuous and multiple predictors
Continuous outcome	2-sample t test	Paired t test	Linear regression
Continuous outcome	Wilcoxon’s rank sum test	Wilcoxon’s rank test	ANOVA
Binary or categorical outcome	Z test and Chi-square test	McNemar’s test	Logistic regression
	Relative risk	Sign test
	Odds ratio
	Fisher’s exact test

ISSN: 1865-1380