Table 1 Participants' characteristics
From: The validity of self-reported body mass index in a population-based osteoarthritis study
Participants | Participants | |
|---|---|---|
With OA* | Without OA^ | |
n = 449 | n = 151 | |
Sociodemographics and covariates | ||
Age, mean (SD) | 64.6 (8.6) | 61.8 (8.9) |
Females, n (%) | 321 (71.5) | 91 (60.3) |
Education status, n (%) | ||
primary/upper secondary school | 318 (72.3) | 98 (67.6) |
>1 year college/university | 122 (27.7) | 47 (32.4) |
IPAQ, low physical activity level, n (%) | 112 (33.5) | 37 (30.8) |
Smoker, n (%) | 64 (14.4) | 21 (13.9) |
SF-36 mental component score [0–100], mean (SD) | 48.7 (10.9) | 47.4 (10.9) |
Months from self-report to measurement, mean (SD) | 7.9 (4.3) | 7.9 (4.0) |
Anthropometrics | ||
Self-reported data | ||
Height (cm), mean (SD) | 169.6 (8.6) | 171.2 (9.2) |
Weight (kg), mean (SD) | 78.0 (15.7) | 78.9 (16.1) |
BMI (kg/m2), mean (SD) | 27.0 (4.5) | 26.8 (4.2) |
Normalweight, n (%) | 163 (36.3) | 58 (38.4) |
Overweight, n (%) | 189 (42.1) | 67 (44.4) |
Obese, n (%) | 97 (21.6) | 26 (17.2) |
Measured data | ||
Height (cm), mean (SD) | 168.2 (8.6) | 170.0 (9.3) |
Weight (kg), mean (SD) | 80.4 (16.4) | 80.0 (16.3) |
BMI (kg/m2), mean (SD) | 28.3 (4.9) | 27.6 (4.4) |
Normalweight, n (%) | 126 (28.1) | 47 (31.1) |
Overweight, n (%) | 166 (37.0) | 62 (41.1) |
Obese, n (%) | 157 (35.0) | 42 (27.8) |
OA site, n (%) | ||
Single site OA | 285 (63.5) | |
Knee OA | 69 (15.4) | |
Hip OA | 42 (9.4) | |
Hand OA | 174 (38.8) | |
Multisite OA | 164 (36.5) | |
Knees + hips | 21 (4.7) | |
Knees + hands | 64 (14.3) | |
Hips + hands | 59 (13.1) | |
Hips + knees + hands | 20 (4.5) |