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. 2021 Jan 24;12(6):768–774. doi: 10.1111/1759-7714.13828

TABLE 3.

Incidence of postoperative pneumonia (POP) of all study participants

Groups n POP n (%) X 2 p‐value
Experimental group 133 4 (3.01%) 0.001a
Control group 118 18 (15.25%) 11.73
a

Significant difference between groups by X 2 test (p < 0.05).