Table 1.
Characteristics of the study participants at baseline
| Total (n=3628) |
Hyperuricaemia (n=649) |
Normouricaemia (n=2979) |
SMD for hyperuricaemia versus normouricaemia | |
| Sex | 0.223 | |||
| Women, n (%) | 2024 (55.8) | 303 (46.7) | 1721 (57.8) | |
| Men, n (%) | 1604 (44.2) | 346 (53.3) | 1258 (42.2) | |
| Age, years (mean±SD) | 63.7±9.3 | 65.8±9.8 | 63.2±9.1 | 0.274 |
| BMI, kg/m2 (mean±SD) | 23.9±3.5 | 24.6±4.0 | 23.8±3.4 | 0.224 |
| Serum urate, μmol/L (mean±SD) | 315.2±89.7 | 455.2±71.7 | 284.6±59.0 | 2.810 |
| Smoking status (%) | 0.227 | |||
| Non-smoker | 64.5 | 55.8 | 66.3 | |
| Ex-smoker | 4.5 | 6.9 | 4.0 | |
| Current smoker | 31.0 | 37.3 | 29.7 | |
| Alcohol drinking (%) | 0.163 | |||
| Non-drinker | 54.2 | 49.1 | 55.2 | |
| Ex-drinker | 11.3 | 15.4 | 10.5 | |
| Current drinker | 34.5 | 35.5 | 34.3 | |
| History of hand injury (%) | 6.6 | 5.4 | 6.9 | 0.064 |
| Diabetes (%) | 7.5 | 10.0 | 7.0 | 0.109 |
| Hypertension (%) | 49.4 | 59.5 | 47.2 | 0.248 |
BMI, body mass index; SMD, standardised mean difference.