Demographic data of study patients, clinical exposure, and pratices in relation to medication-related harm related to GP prescribing
| Unweighted study data, n (%) | Weighted data, n (%)a | |||
|---|---|---|---|---|
| No harm | Medicine-related harm | No harm | Medicine-related harm | |
| Total | 8100/9076 (89.2) | 976/9076 (10.8) | 3 737 889/4 240 293 (88.2) | 502 404/4 240 293 (11.8) |
| Age, years | ||||
| 0–4 | 296 (94.6) | 17 (5.4) | 146 698 (93.0) | 11 114 (7.0) |
| 5–14 | 1283 (97.6) | 32 (2.4) | 599 128 (96.5) | 21 511 (3.5) |
| 15–59 | 4765 (93.2) | 345 (6.8) | 2 274 914 (92.1) | 195 620 (7.9) |
| 60–74 | 1217 (80.0) | 305 (20.0) | 504 945 (76.7) | 153 736 (23.3) |
| >75 | 539 (66.1) | 277 (33.9) | 212 204 (63.8) | 120 424 (36.2) |
| Sex | ||||
| Female | 4189 (87.8) | 583 (12.2) | 1 972 810 (86.9) | 298 012 (13.1) |
| Male | 3911 (90.9) | 393 (9.1) | 1 765 079 (89.6) | 204 392 (10.4) |
| Ethnicityb | ||||
| European | 6092 (88.4) | 797 (11.6) | 2 901 377 (87.1) | 428 700 (12.9) |
| Māori | 1207 (91.0) | 119 (9.0) | 385 728 (90.2) | 42 081 (9.8) |
| Pasifika | 298 (94.3) | 18 (5.7) | 102 189 (95.0) | 5322 (5.0) |
| Other | 384 (94.6) | 22 (5.4) | 306 709 (93.7) | 20 675 (6.3) |
| Deprivationc,d | ||||
| 1 | 1762 (89.6) | 204 (10.4) | 1 165 530 (88.5) | 150 861 (11.5) |
| 2 | 1655 (88.9) | 207 (11.1) | 829 358 (87.4) | 119 827 (12.6) |
| 3 | 1525 (89.7) | 176 (10.3) | 663 132 (89.2) | 79 880 (10.8) |
| 4 | 1202 (88.8) | 152 (11.2) | 469 926 (87.0) | 70 324 (13.0) |
| 5 | 1149 (88.5) | 150 (11.5) | 385 526 (87.1) | 57 219 (12.9) |
| Number of consultations | ||||
| 0–3 | 2466 (99.7) | 8 (0.3) | 1 081 613 (99.5) | 5567 (0.5) |
| 4–12 | 3096 (95.9) | 132 (4.1) | 1 476 184 (94.5) | 86 466 (5.5) |
| >13 | 2538 (75.2) | 836 (24.8) | 1 180 091 (74.2) | 410 371 (25.8) |
| Number of medications | ||||
| 0–4 | 4601 (98.6) | 64 (1.4) | 2 115 238 (98.0) | 43 101 (2.0) |
| 5–9 | 2099 (89.1) | 257 (10.9) | 956 015 (87.3) | 139 267 (12.7) |
| >10 | 1400 (68.1) | 655 (31.9) | 666 636 (67.6) | 320 036 (32.4) |
| Practice size | ||||
| Large | 2650 (88.2) | 353 (11.8) | 2 409 416 (87.0) | 358 999 (13.0) |
| Medium | 2729 (88.6) | 351 (11.4) | 927 812 (89.6) | 107 132 (10.4) |
| Small | 2721 (90.9) | 272 (9.1) | 400 661 (91.7) | 36 273 (8.3) |
| Practice location | ||||
| Urban | 4082 (89.8) | 462 (10.2) | 3 050 365 (88.0) | 416 372 (12.0) |
| Rural | 4018 (88.7) | 514 (11.3) | 687 524 (88.9) | 86 032 (11.1) |
↵a Weighting was applied based on the relative probability of each practice being selected per strata, and each person being selected to participate per practice, due to the complex sampling design of the study. Weighting means these results are nationally generalisable to the New Zealand population.
↵b Missing data = 139.
↵c Missing data = 894.
↵d Deprivation is based on New Zealand Index of Deprivation (socioeconomic deprivation), where 1 = least deprived, and 5 = most deprived.14