Table 1 Baseline characteristics and outcomes of patients with MI, by a history of mental health admission
|  | No mental health admission (N = 227,506) | Schizophrenia (N = 923) | Bipolar disorder (N = 642) | Depression (N = 6239) |
|---|---|---|---|---|
Median follow-up time (IQR), years | 5.4 (0.4, 11.7) | 4.3 (0.2, 8.9) | 3.2 (0.1, 8.6) | 3.2 (0.1, 8.0) |
Sex, n (%) | ||||
 Female | 93,813 (41.2%) | 369 (40.0%) | 347 (54.0%) | 3555 (57.0%) |
 Male | 133,693 (58.8%) | 554 (60.0%) | 295 (46.0%) | 2684 (43.0%) |
Mean age at MI (SD), years | 69.1 (13.2) | 62.3 (13.5) | 67.5 (12.7) | 68.9 (13.8) |
Year of MI admission, n (%) | ||||
 1991–1995 | 60,050 (26.4%) | 165 (17.9%) | 121 (18.8%) | 1020 (16.3%) |
 1996–2000 | 48,701 (21.4%) | 168 (18.2%) | 106 (16.5%) | 1067 (17.1%) |
 2001–2005 | 44,426 (19.5%) | 196 (21.2%) | 161 (25.1%) | 1278 (20.5%) |
 2006–2010 | 39,507 (17.4%) | 184 (19.9%) | 135 (21.0%) | 1461 (23.4%) |
 2011–2014 | 34,822 (15.3%) | 210 (22.8%) | 119 (18.5%) | 1413 (22.6%) |
Deprivation quintile, n (%) | ||||
 1 (most deprived) | 50,898 (22.4%) | 279 (30.2%) | 156 (24.3%) | 1609 (25.8%) |
 2 | 47,691 (21.0%) | 195 (21.1%) | 133 (20.7%) | 1345 (21.6%) |
 3 | 45,792 (20.1%) | 188 (20.4%) | 106 (16.5%) | 1213 (19.4%) |
 4 | 44,557 (19.6%) | 163 (17.7%) | 125 (19.5%) | 1131 (18.1%) |
 5 (least deprived) | 38,568 (17.0%) | 98 (10.6%) | 122 (19.0%) | 941 (15.1%) |
Urbanicity, n (%) | ||||
 Large urban area | 78,299 (34.4%) | 365 (39.5%) | 271 (42.2%) | 2408 (38.6%) |
 Other urban area | 80,536 (35.4%) | 354 (38.4%) | 203 (31.6%) | 2064 (33.1%) |
 Accessible small town | 20,597 (9.1%) | 53 (5.7%) | 49 (7.6%) | 527 (8.4%) |
 Remote small town | 9415 (4.1%) | 28 (3.0%) | 29 (4.5%) | 291 (4.7%) |
 Accessible rural | 23,960 (10.5%) | 84 (9.1%) | 56 (8.7%) | 532 (8.5%) |
 Remote rural | 14,699 (6.5%) | 39 (4.2%) | 34 (5.3%) | 417 (6.7%) |
History of alcohol use disorder, n (%) | 5177 (2.3%) | 138 (15.0%) | 70 (10.9%) | 915 (14.7%) |
Diabetes recorded at MI admission, n (%) | 22,449 (9.9%) | 115 (12.5%) | 74 (11.5%) | 772 (12.4%) |
COPD recorded at MI admission, n (%) | 12,523 (5.5%) | 77 (8.3%) | 45 (7.0%) | 659 (10.6%) |
Heart failure at MI admission, n (%) | 37,796 (16.6%) | 171 (18.5%) | 110 (17.1%) | 1067 (17.1%) |
30-day mortality, n (%) | 44,580 (19.6%) | 203 (22.0%) | 154 (24.0%) | 1443 (23.1%) |
1-year mortality, n (%) | 66,977 (29.4%) | 309 (33.5%) | 247 (38.5%) | 2306 (37.0%) |
Revascularisation within 30 days* | ||||
 Any, n (%) | 37,375 (16.4%) | 137 (14.8%) | 94 (14.6%) | 1036 (16.6%) |
 CABG, n (%) | 3175 (1.4%) | 7 (0.8%) | 8 (1.2%) | 56 (0.9%) |
 PTCA, n (%) | 8219 (3.6%) | 30 (3.3%) | 22 (3.4%) | 193 (3.1%) |
 PCI, n (%) | 26,450 (11.6%) | 104 (11.3%) | 65 (10.1%) | 805 (12.9%) |
5-year mortality†| ||||
 N | 219,161 | 868 | 611 | 5897 |
 n (%) | 100,560 (45.9%) | 457 (52.6%) | 350 (57.3%) | 3388 (57.5%) |