Characteristics of the study population (n = 819 590)
| Total, n (%) | Children, n (%) | Adults, n (%) | |
|---|---|---|---|
| Age, years | All | 0–17 | ≥18 |
| 819 590 (100.0) | 193 195 (23.6) | 626 395 (76.4) | |
| Sex | |||
| Female | 397 740 (48.5) | 94 976 (49.2) | 302 764 (48.3) |
| Age band, years | |||
| 0–4 | 63 772 (7.8) | 63 772 (33.0) | |
| 5–11 | 75 843 (9.3) | 75 843 (39.3) | |
| 12–17 | 53 580 (6.5) | 53 580 (27.7) | |
| 18–34 | 289 383 (35.3) | 289 383 (46.2) | |
| 35–44 | 137 402 (16.8) | 137 402 (21.9) | |
| 45–54 | 91 132 (11.1) | 91 132 (14.5) | |
| 55–64 | 53 979 (6.6) | 53 979 (8.6) | |
| 65–74 | 30 071 (3.7) | 30 071 (4.8) | |
| ≥75 | 24 428 (3.0) | 24 428 (3.9) | |
| Ethnicity | |||
| White | 301 448 (36.8) | 43 284 (22.4) | 258 164 (41.2) |
| South Asian | 252 244 (30.8) | 69 332 (35.9) | 182 912 (29.2) |
| Black | 134 342 (16.4) | 34 284 (17.7) | 100 058 (16.0) |
| Other | 53 178 (6.5) | 13 350 (6.9) | 39 828 (6.4) |
| Unknowna | 78 378 (9.6) | 32 945 (17.1) | 45 433 (7.3) |
| Study population IMD 2015 quintiles | |||
| 1 least deprived | 148 663 (18.1) | 29 652 (15.3) | 119 011 (19.0) |
| 2 | 167 613 (20.5) | 39 859 (20.6) | 127 754 (20.4) |
| 3 | 168 618 (20.6) | 39 364 (20.4) | 129 254 (20.6) |
| 4 | 167 914 (20.5) | 41 037 (21.2) | 126 877 (20.3) |
| 5 most deprived | 166 228 (20.3) | 43 160 (22.3) | 123 068 (19.6) |
| Residential status | |||
| Independent | 815 191 (99.5) | 193 159 (100.0) | 622 032 (99.3) |
| Housebound | 3626 (0.4) | 3614 (0.6) | |
| Care home | 773 (0.1) | 749 (0.1) | |
| Currently smoking | |||
| Yes | 136 067 (16.6) | 754 (0.4) | 135 313 (21.6) |
| Unknownb | 172 496 (21.0) | 158 505 (82.0) | 13 991 (2.2) |
| BMI, kg/m2 | |||
| Underweight (<18.5) | 21 913 (3.5) | ||
| Normal weight (18.5 to <25) | 222 699 (35.6) | ||
| Overweight (25 to <30) | 180 860 (28.9) | ||
| Obese (≥30) | 126 596 (20.2) | ||
| Out of range (<10 or ≥100) | 947 (0.2) | ||
| Unknownb | 73 380 (11.7) | ||
| Total QOF long term conditions | |||
| 0 | 606 350 (74.0) | 179 696 (93.0) | 426 654 (68.1) |
| 1 | 136 949 (16.7) | 13 186 (6.8) | 123 763 (19.8) |
| 2 | 45 156 (5.5) | 290 (0.2) | 44 866 (7.2) |
| 3 | 18 151 (2.2) | 21 (0.0) | 18 130 (2.9) |
| ≥4 | 12 666 (1.5) | 2 (0.0) | 12 664 (2.0) |
| GP consultations, per year, per patient | |||
| 0 | 249 090 (30.4) | 51 943 (26.9) | 197 147 (31.5) |
| 0.5–2 | 277 917 (33.9) | 91 652 (47.4) | 186 265 (29.7) |
| ≥2.5 | 292 583 (35.7) | 49 600 (25.7) | 242 983 (38.8) |
| Crude ED attendance, rate per 1000 population | 308.6 | 337.6 | 299.7 |
| Crude ED attendance no follow-up, rate per 1000 population | 116.0 | 156.5 | 103.6 |
| Distance to nearest hospital in kilometres, mean (SD) | 2.68 (1.22) | 2.71 (1.20) | 2.68 (1.20) |