Table 2 Baseline characteristics of the linked sample of CHHiP participants based on additional information extracted from primary care data
| Baseline characteristic | n (% of recorded) | Mean (SD) of recorded |
Missing n (% of 106 linked sample) |
|---|---|---|---|
| Ethnicity | 37 (35) | ||
| White | 64 (93) | ||
| Black | 4 (6) | ||
| Asian | 1 (1) | ||
| Index of multiple deprivation, quintile | 13 (12) | ||
| 1 (≥ 33.881, most deprived) | 7 (8) | ||
| 2 | 14 (15) | ||
| 3 | 15 (16) | ||
| 4 | 20 (22) | ||
| 5 (≤ 8.372, least deprived) | 37 (40) | ||
| Body mass index (kg/m2) | 28 (5) | 61 (57) | |
| Obesity (body mass index ≥30) | 12 (27) | ||
| Systolic blood pressure (mmHg) | 141 (20) | 48 (45) | |
| Diastolic blood pressure (mmHg) | 78 (11) | 48 (45) | |
| Total cholesterol (mmol/l) | 4.7 (1.0) | 68 (64) | |
| High-density lipoprotein (mmol/l) | 1.3 (0.3) | 73 (69) | |
| Smoking status | 27 (25) | ||
| Active smoker | 5 (6) | ||
| Ex-smoker | 43 (54) | ||
| Non-smoker | 31 (39) | ||
| Alcohol consumption | 20 (19) | ||
| Non-drinker | 10 (12) | ||
| Safe | 51 (59) | ||
| Hazardous | 21 (24) | ||
| Alcoholism | 4 (5) |