Table 4.

Racial/Ethnic Differences Within Each BMI Category in Risk of Onset of Mobility Difficulty and ADL Difficulty during 10 Years of Follow-up: Results from GEE Models.

Combined Groups of BMI Categories and Race/Ethnicity	Mobility Difficultya (N=5884)		ADL Difficultyb (N=8484)
	Model 1c OR (95% CI)	Model 2d OR (95% CI)	Model 1c OR (95% CI)	Model 2d OR (95% CI)
Normal Weight (18.5 ≤ BMI < 25) at Baseline
Black vs. White	1.33(1.05-1.70)*	1.35(1.06-1.73)*	1.55(1.15-2.09)**	1.46(1.08-1.98)*
Hispanic vs. White	1.15(0.85-1.57)	1.47(1.09-1.97)*	1.16(0.76-1.76)	1.66(1.11-2.51)*
Hispanic vs. Black	0.87(0.60-1.25)	1.08(0.76-1.55)	0.75(0.46-1.20)	1.14(0.71-1.84)
Overweight (25 ≤ BMI < 30) at Baseline
Black vs. White	0.90(0.75-1.09)	0.93(0.77-1.12)	1.28(1.01-1.63)*	1.31(1.03-1.67)*
Hispanic vs. White	0.82(0.66-1.02)	0.98(0.80-1.21)	1.04(0.78-1.38)	1.41(1.07-1.85)*
Hispanic vs. Black	0.91(0.70-1.18)	1.06(0.82-1.37)	0.81(0.58-1.13)	1.07(0.78-1.48)
Obese (30 ≤ BMI < 35) at Baseline
Black vs. White	0.87(0.67-1.14)	0.86(0.66-1.12)	0.95(0.70-1.28)	1.14(0.84-1.55)
Hispanic vs. White	0.85(0.62-1.16)	0.94(0.69-1.29)	1.34(0.96-1.89)	1.91(1.37-2.68)**
Hispanic vs. Black	0.98(0.67-1.42)	1.10(0.76-1.59)	1.42(0.95-2.11)	1.70(1.39-2.53)*
Severely Obese (BMI ≥ 35) at Baseline
Black vs. White	1.27(0.82-1.97)	1.13(0.72-1.79)	1.56(1.10-2.23)*	1.58(1.09-2.28)*
Hispanic vs. White	0.91(0.45-0.84)	1.07(0.55-2.08)	1.12(0.59-2.12)	1.60(0.86-2.95)
Hispanic vs. Black	0.72(0.33-1.55)	0.94(0.45-1.97)	0.72(0.37-1.40)	1.01(0.53-1.94)

Notes.

^aOnset of mobility difficulty between 1996 and 2006.

^bOnset of ADL difficulty between 1996 and 2006.

^cModel 1: controlling for socio-demograpbic characteristics and health behaviors.

^dModel 2: controlling for socio-demographic characteristics, health behaviors, and disease severity.

BMI = Body Mass Index; ADL = Activities of Daily Living.

^*p<0.05

^**p<0.01.