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. 2021 Sep 16;21:441. doi: 10.1186/s12872-021-02262-5

Table 5.

Mutual independence testing results among gender, intervention and survival

Hypothesis (H0) Chi-square statistic Degree of freedom Critical value Result
Gender, intervention and outcome are mutual independent 25.5 7 14.1 p < 0.05, reject H0
Outcome is independent of gender and intervention 25.5 5 11.1 p < 0.05, reject H0
Gender is independent of intervention and outcome 8.4 5 11.1 p > 0.05, accept H0
Intervention is independent of gender and outcome 21.7 6 12.6 p < 0.05, reject H0