Variable | Categories | Total | Hospital A | Hospital B | p-value | |||
---|---|---|---|---|---|---|---|---|
N | % | N | % | N | % | |||
Age on admission | 16–24 | 126 | 6.1 | 85 | 6.1 | 41 | 6.1 | 0.993 |
25–39 | 427 | 20.7 | 283 | 20.3 | 144 | 21.4 |  | |
40–59 | 784 | 37.9 | 524 | 37.6 | 260 | 38.6 |  | |
60 +  | 679 | 32.8 | 451 | 32.4 | 228 | 33.9 |  | |
Missing | 51 | 2.5 | 51 | 3.7 | 0 | 0.0 | Â | |
Sex | Male | 1334 | 64.5 | 912 | 65.4 | 422 | 62.7 | 0.170 |
Female | 723 | 35.0 | 472 | 33.9 | 251 | 37.3 | Â | |
Missing | 10 | 0.5 | 10 | 0.7 | 0 | 0.0 | Â | |
Ethnicity | Asian | 61 | 3.0 | 48 | 3.4 | 13 | 1.9 |  < 0.001 |
Black | 238 | 11.5 | 113 | 8.1 | 125 | 18.6 | Â | |
White | 1306 | 63.2 | 917 | 65.8 | 389 | 57.8 | Â | |
Mixed | 43 | 2.1 | 22 | 1.6 | 21 | 3.1 | Â | |
Other | 117 | 5.7 | 54 | 3.9 | 63 | 9.4 | Â | |
Declined or not stated | 234 | 11.3 | 172 | 12.3 | 62 | 9.2 | Â | |
Missing | 68 | 3.3 | 68 | 4.9 | 0 | 0.0 | Â | |
IMD tertile | Lower | 855 | 41.4 | 526 | 37.7 | 329 | 48.9 |  < 0.001 |
Middle | 509 | 24.6 | 316 | 22.7 | 193 | 28.7 | Â | |
Upper | 133 | 6.4 | 74 | 5.3 | 59 | 8.8 | Â | |
Missing | 570 | 27.6 | 478 | 34.3 | 92 | 13.7 | Â | |
HSI category | Low | 348 | 16.8 | 154 | 11.0 | 194 | 28.8 |  < 0.001 |
Medium | 774 | 37.4 | 480 | 34.4 | 294 | 43.7 | Â | |
High | 108 | 5.2 | 66 | 4.7 | 42 | 6.2 | Â | |
Missing | 837 | 40.5 | 694 | 49.8 | 143 | 21.2 | Â | |
Smoking cessation aids | None | 886 | 42.9 | 560 | 40.2 | 326 | 48.4 |  < 0.001 |
Single | 470 | 22.7 | 311 | 22.3 | 159 | 23.6 | Â | |
Combination | 700 | 33.9 | 523 | 37.5 | 177 | 26.3 | Â | |
Missing | 11 | 0.5 | 0 | 0 | 11 | 1.6 | Â | |
Smoking-related diagnosis | Yes | 399 | 19.3 | 246 | 17.6 | 153 | 22.7 | 0.866 |
No | 1257 | 60.8 | 783 | 56.2 | 474 | 70.4 | Â | |
Missing | 411 | 19.9 | 365 | 26.2 | 46 | 6.8 | Â | |
Presenting primary diagnosis | Injury, poisoning, and external | 306 | 14.8 | 127 | 9.1 | 179 | 26.6 |  < 0.001 |
Digestive | 215 | 10.4 | 116 | 8.3 | 99 | 14.7 | Â | |
Mental and behavioural | 214 | 10.4 | 190 | 13.6 | 24 | 3.6 | Â | |
Respiratory | 205 | 9.9 | 145 | 10.4 | 60 | 8.9 | Â | |
Circulatory | 131 | 6.3 | 77 | 5.5 | 54 | 8.0 | Â | |
Endocrine and blood | 106 | 5.1 | 67 | 4.8 | 39 | 5.8 | Â | |
Genitourinary | 64 | 3.1 | 33 | 2.4 | 31 | 4.6 | Â | |
Neoplasms | 63 | 3.0 | 24 | 1.7 | 39 | 5.8 | Â | |
Infectious and parasitic | 49 | 2.4 | 23 | 1.6 | 26 | 3.9 | Â | |
Musculoskeletal | 47 | 2.3 | 27 | 1.9 | 20 | 3.0 | Â | |
Nervous system | 46 | 2.2 | 31 | 2.2 | 15 | 2.2 | Â | |
Skin and subcutaneous | 37 | 1.8 | 25 | 1.8 | 12 | 1.8 | Â | |
Others | 173 | 8.4 | 144 | 10.3 | 29 | 4.3 | Â | |
Missing | 411 | 19.9 | 365 | 26.2 | 46 | 6.8 | Â | |
Past diagnoses | Cancer | 217 | 10.5 | 179 | 12.8 | 38 | 5.6 |  < 0.001 |
COPD | 557 | 26.9 | 402 | 28.8 | 155 | 23.0 | 0.006 | |
CVD | 310 | 15.0 | 234 | 16.8 | 76 | 11.3 | 0.001 | |
Diabetes | 438 | 21.2 | 367 | 26.3 | 71 | 10.5 |  < 0.001 | |
Mental and behavioural | 1375 | 66.5 | 1039 | 74.5 | 336 | 49.9 |  < 0.001 | |
Intention at first TDS assessment | Patient declined | 407 | 19.7 | 340 | 24.4 | 67 | 10.0 |  < 0.001 |
Withdrawal management | 1100 | 53.2 | 805 | 57.7 | 295 | 43.8 | Â | |
Quit attempt | 542 | 26.2 | 242 | 17.4 | 300 | 44.6 | Â | |
Missing | 18 | 0.9 | 7 | 0.5 | 11 | 1.6 | Â |