Table 4.

Relationship of Body Mass Index (BMI) With Bed Disability Days, Hospital Days, Major Disability, Infection Diagnosis, and Infection Related Outcomes in 22,617 Women Aged 18–49 With Self-Reported BMI <25 in National Health Interview Survey 1990.

Outcome	Regression	BMIs	β	p	Odds Ratio
Bed days	Linear	All BMI <25	−.027	<.001
Hospital days	Linear	All BMI <25	−.020	.003
Major disability	Logistic	<20 vs. 20–24			1.26 [1.05, 1.52]
Infection present	Logistic	<20 vs. 20–24			1.15 [1.04, 1.24]
Related bed days	Linear	All BMI <25	−.021	.003
Related restricted activity	Linear	All BMI <25	−.024	<.001