“…The remaining studies (30 of 45, 67%) applied descriptive statistics and other statistical methods specified in Table 2. At least 9 (30%) of 30 studies used only chi-square or t tests 26,28,29,[34][35][36]39,45,69 ; meanwhile, other studies from the 30 used a combination of these basic tests and more complex methods such as data mining, 37,38,40,41,43,56,57 logistic regression, 33,41,43,47,54,56,57 analysis of Table 3. Summary of predictors and outcomes for included studies that measured impact of nursing care…”