Table 4.

Poisson regression model for incident fracture among boys in the glomerular disease and general pediatric cohorts

Variable	Incidence Rate Ratio	95% CI	P Value
Cohort: glomerular disease	1.148	0.993 to 1.329	0.06
Age (yr)	0.58	0.078 to 4.315	0.59
Age squared	0	0 to 0	<0.001
Age cubed	0.002	0.001 to 0.008	<0.001
Race
White	1	—	—
Black or African American	1.469	1.338 to 1.614	<0.001
Other	1.636	1.507 to 1.777	<0.001
Asian American	0.86	0.759 to 0.973	0.02
Unknown	1.093	0.953 to 1.252	0.2
Obese	1.109	1.036 to 1.188	0.003