Table 3.

Odds ratios* for lower extremity fracture according to sex, age group, and body weight class

Patient group	p value	Underweight (n = 145)	Normal weight (n = 3950)	Overweight (n = 1400)	Moderately obese (n = 1043)	Extremely obese (n = 620)
All fractures (n = 7158)	< 0.001	0.774 (0.655–0.915)	1.0 (reference)	1.174 (1.103–1.249)	1.230 (1.148–1.319)	1.446 (1.326–1.577)
Males only (n = 4487)	< 0.001	0.798 (0.649–0.980)		1.095 (1.010–1.187)	1.166 (1.069–1.272)	1.377 (1.238–1.532)
Females only (n = 2794)	< 0.001	0.709 (0.533–0.944)		1.307 (1.186–1.440)	1.348 (1.200–1.514)	1.593 (1.372–1.851)
2–5 years (n = 675)	0.0289	1.039 (0.736–1.466)		0.959 (0.757–1.215)	1.059 (0.816–1.373)	1.899 (1.284–2.808)
6–11 years (n = 1945)	< 0.001	0.890 (0.631–1.255)		1.582 (1.407–1.779)	1.627 (1.439–1.841)	2.232 (1.920–2.594)
12–19 years (n = 4538)	0.0077	0.703 (0.558–0.885)		1.036 (0.959–1.119)	1.041 (0.951–1.131)	1.107 (1.03–1.237)

* Odds ratios are adjusted for sex (male versus female), race (non-Hispanic white, Hispanic, black, Asian or Pacific Islander, other/unknown race), and age, neighborhood education (likelihood of neighborhood education below high school versus higher than high school), and Medi-Cal benefit use (yes versus no).