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. 2023 Aug 24;13(8):e060695. doi: 10.1136/bmjopen-2021-060695

Table 3.

Hypothesis testing for the comparison of the three variables studied, by hospital

Variable Public hospitals Private hospitals Total Significance test
AEP No. (%) No. (%) No. (%) χ² Sig. Level
53 (56.9) 40 (43) 93 (100) 2.55 0.11 NS
AE severity level No. (%) No. (%) Total χ² Sig. Level
 Low 21 (22.5) 7 (7.5) 28 (30.1) 7.122 0.28 NS
 Average 17 (18.2) 21 (22.5) 38 (40.8)
 High 15 (16.1) 12 (12.9) 27 (29)
PSCI (scale 24–104) Value Value Value Ʈ Sig. Level
52.67 52.96 * 0.12 0.91 NS
PSPI (scale 12–40) Value Value Value Ʈ Sig. Level
25.4 27.3 * 8.7 0.000 S

*No value applies.

AE, adverse event; AEP, adverse events prevalence; NS, not significant; PSCI, Patient Safety Culture Index; PSPI, Patient Safety Perception Index; S, significant.