Table 3. Logistic regression analysis of vitamins A, D, and E in sMPP.

Index	B	S.E.	Wald	OR (95% CI)	P
Vitamin A	−7.874	2.996	6.907	0.001 (0.001–0.334)	0.009
Vitamin E	−0.182	0.107	2.914	0.834 (0.676–1.027)	0.088
Vitamin D	−0.182	0.019	2.817	0.969 (0.934–1.005)	0.093

sMPP, severe M. pneumoniae pneumonia; B, the coefficient for the constant in the null model; S.E., standard error around the coefficient for the constant; Wald, the Wald chi-square test value; OR, odds ratio; CI, confidence interval.