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Table 4 The result of performing robust ANCOVA for knowledge, perceived susceptibility, and perceived severity among the Iran University of Medical Sciences staff during 2019. Significant results are highlighted in boldface intervals

From: The effect of education based on health belief model on promoting preventive behaviors of hypertensive disease in staff of the Iran University of Medical Sciences

Variable Design point n1 n2 \( {\overline{x}}_{case}^p-{\overline{x}}_{ctrl}^p \) 95% CI
Knowledge 0 30 30 1.67 (0.87, 2.46)
3 47 18 1.19 (0.20, 2.59)
5 33 33 0.38 (0.01, 0.77)
Perceived susceptibility 7 13 13 3.33 (4.17, 2.50)
10 40 38 2.04 (3.01, 1.07)
11 37 42 1.65 (2.59, 0.71)
14 31 35 0.42 (1.38, 0.53)
16 18 18 0.92 (1.86, 0.03)
Perceived severity 9 19 17 2.66 (3.59, 1.72)
11 25 28 2.69 (3.76, 1.62)
14 39 40 0.79 (1.62, 0.06)
16 37 33 0.64 (1.34, 0.06)
18 18 15 0.17 (0.97, 0.64)