Table 1 Participant demographics
Outcome | n= (%) in relation to all participants |
|---|---|
Category | n= (%) for each category of outcome |
All | 425 (100.0) |
Age in years | 425 (100.0) |
 -≤ 54 | 57 (13.4) |
 -55-64 | 185 (43.5) |
 -65-74 | 142 (33.4) |
 -≥75 | 41 (9.7) |
Gender | 424 (99.8) |
 -Female | 290 (68.4) |
 -Male | 134 (31.6) |
BMI | 413 (97.2) |
 -Healthy - <23 kg/m2 | 85 (20.0) |
 -Overweight - 23-27.4 kg/m2 | 191 (44.9) |
 -Obesity - ≥ 27.5 kg/m2 | 137 (32.2) |
Ethnicity | 425 (100.0) |
 -Chinese | 333 (78.35) |
 -Indian | 43 (10.12) |
 -Malay | 42 (9.88) |
 -Others | 7 (1.65) |
Employment status | 419 (98.6) |
 -Employed | 236 (56.3) |
 -Unemployed | 19 (4.5) |
 -Homemaker | 48 (11.5) |
 -Retired | 116 (27.7) |
Education level | 425 (100) |
 -Informal | 16 (3.8) |
 -Primary | 64 (15.1) |
 -Secondary | 214 (50.4) |
 -Diploma | 64 (15.1) |
 -University | 51 (12.0) |
 -Others | 16 (3.8) |
Presence of symptomatic osteoarthritis in: | 424 (99.8) |
 -Left knee | 89 (21.0) |
 -Right knee | 154 (36.3) |
 -Both knees | 181 (42.6) |