Adjusted models for the association between sociodemographics and PDoC in CDU+ subanalysis
| Total n (col%) | GHB (n=243) | Methamphetamine (n=874) | Mephedrone (n=764) | |||||
| n (row %) Missing data (%) | Multivariate aPR (95% CI) p value (Wald test) | n (row %) Missing data (%) | Multivariate aPR (95% CI) p value (Wald test) | n (row %) Missing data (%) | Multivariate aPR (95% CI) p value (Wald test) | |||
| Age (years) | <25 | 181 (10.5) | 34 (18.8) | 1.32 (0.50 to 3.51) | 57 (31.5) | 0.38 (0.27 to 0.53) | 90 (49.7) | 5.09 (1.73 to 14.95) |
| 25–29 | 267 (15.5) | 38 (14.2) | 1.21 (0.46 to 3.17) | 106 (39.7) | 0.53 (0.40 to 0.70) | 123 (46.1) | 4.03 (1.37 to 11.83) | |
| 30–34 | 425 (24.6) | 57 (13.4) | 1.12 (0.43 to 2.87) | 181 (42.6) | 0.55 (0.43 to 0.71) | 187 (44) | 3.86 (1.32 to 11.29) | |
| 35–39 | 350 (20.3) | 39 (11.1) | 0.82 (0.31 to 2.15) | 172 (49.1) | 0.73 (0.58 to 0.93) | 139 (39.7) | 3.16 (1.08 to 9.30) | |
| 40–44 | 244 (14.1) | 34 (13.9) | 1.26 (0.48 to 3.30) | 111 (45.5) | 0.67 (0.51 to 0.86) | 99 (40.6) | 3.11 (1.05 to 9.19) | |
| 45–49 | 149 (8.6) | 9 (6.0) | 0.32 (0.09 to 1.12) | 97 (65.1) | 0.90 (0.70 to 1.16) | 43 (28.9) | 2.48 (0.82 to 7.48) | |
| 50–54 | 77 (4.5) | 7 (9.1) | 0.52 (0.14 to 1.94) | 48 (62.3) | 0.82 (0.61 to 1.10) | 22 (28.6) | 2.82 (0.90 to 8.87) | |
| 55+ | 34 (2.0) | 4 (11.8) | 1 | 25 (73.5) | 1 | 5 (14.7) | 1 | |
| 1727 | 222 | 0.0345 | 797 | < 0.0001 | 708 | < 0.0001 | ||
| 9% | 9% | 7% | ||||||
| Sexuality | Gay | 1768 (96.2) | 225 (12.7) | 824 (46.6) | 719 (40.7) | |||
| Bisexual | 52 (2.8) | 12 (23.1) | 21 (40.4) | 19 (36.5) | ||||
| Other | 18 (1.0) | 2 (11.1) | 10 (55.6) | 6 (33.3) | ||||
| 1838 | 239 | 855 | 744 | |||||
| 2% | 2% | 3% | ||||||
| Nationality | British | 941 (61.9) | 136 (14.5) | 474 (50.4) | 331 (35.2) | |||
| Other | 578 (38.1) | 75 (13.0) | 267 (46.2) | 236 (40.8) | ||||
| 1519 | 211 | 741 | 567 | |||||
| 13% | 15% | 26% | ||||||
| Ethnicity | White | 1337 (82.6) | 188 (14.1) | 1 | 638 (47.7) | 1 | 511 (38.2) | |
| BME | 282 (17.4) | 24 (8.5) | 0.55 (0.35 to 0.88) | 154 (54.6) | 1.16 (1.01 to 1.32) | 104 (36.9) | ||
| 1619 | 212 | 0.011 | 792 | 0.034 | 615 | |||
| 13% | 9% | 20% | ||||||
| Employment | Full/part-time | 1040 (68.9) | 121 (11.6) | 0.74 (0.55 to 0.98) | 467 (44.9) | 0.82 (0.73 to 0.92) | 452 (43.5) | 1.48 (1.26 to 1.73) |
| Other | 470 (31.1) | 77 (16.4) | 1 | 253 (53.8) | 1 | 140 (29.8) | 1 | |
| 1510 | 198 | 0.037 | 720 | 0.001 | 592 | < 0.0001 | ||
| 19% | 18% | 23% | ||||||
| Accommodation | Own | 285 (20.8) | 32 (11.2) | 154 (54) | 99 (34.7) | |||
| Rent | 799 (58.4) | 114 (14.3) | 360 (45.1) | 325 (40.7) | ||||
| Other | 283 (20.7) | 42 (14.8) | 141 (49.8) | 100 (35.3) | ||||
| 1367 | 188 | 655 | 524 | |||||
| 23% | 25% | 31% | ||||||
Age p values are test for trend.
Bold values are column totals or p values associated with prevalence ratios.
BME, black and minority ethnic; CDU, chemsex-related drug use; GHB, gamma-hydroxybutyric acid; PDoC, primary drug of concern; aPR, adjusted prevalence ratio.