Table 1 Baseline characteristics of people included in the NCKDA with an AMI hospitalisation recorded in MINAP, HES, or both
From: Management and outcomes of myocardial infarction in people with impaired kidney function in England
eGFR category | 1–2 | 3a | 3b | 4–5 | Total |
|---|---|---|---|---|---|
|  | N = 3,574 | N = 1,193 | N = 721 | N = 347 | 5,835 |
Age (years) at AMI admission, mean (SD) | 70 (13) | 79 (10) | 82 (9) | 79 (12) | 74 (13) |
Age group at AMI admission, years | |||||
  < 50 | 249 (7) | 15 (1) | 1 (0) | 9 (3) | 274 (5) |
 50–64 | 976 (27) | 83 (7) | 36 (5) | 35 (10) | 1,130 (19) |
 65–79 | 1,443 (40) | 477 (40) | 213 (30) | 104 (30) | 2,237 (38) |
 80 +  | 906 (25) | 618 (52) | 471 (65) | 199 (57) | 2,194 (38) |
Female | 1,226 (34) | 564 (47) | 361 (50) | 142 (41) | 2,293 (39) |
Ethnicity | |||||
 White | 3,288 (92) | 1,131 (95) | 686 (95) | 317 (91) | 5,422 (93) |
 Other | 286 (8) | 62 (5) | 35 (5) | 30 (9) | 413 (7) |
IMD quintile | |||||
 1 (least deprived) | 631 (18) | 226 (19) | 136 (19) | 59 (17) | 1,052 (18) |
 2 | 736 (21) | 274 (23) | 154 (21) | 68 (20) | 1,232 (21) |
 3 | 793 (22) | 281 (24) | 167 (23) | 72 (21) | 1,313 (23) |
 4 | 822 (23) | 229 (19) | 159 (22) | 83 (24) | 1,293 (22) |
 5 (most deprived) | 592 (17) | 183 (15) | 105 (15) | 65 (19) | 945 (16) |
History of dialysis in primary care data | |||||
 Peritoneal dialysis | 0 (0) | 0 (0) | 0 (0) | 10 (3) | 10 (0) |
 Haemodialysis | 0 (0) | 0 (0) | 0 (0) | 21 (6) | 21 (0) |
 Renal dialysis, unspecified | 0 (0) | 0 (0) | 0 (0) | 7 (2) | 7 (0) |
History of kidney transplant in primary care data | 2 (0) | 0 (0) | 3 (0) | 15 (4) | 20 (0) |
Comorbidities | |||||
 Angina | 770 (22) | 332 (28) | 228 (32) | 134 (39) | 1,464 (25) |
 Cerebrovascular disease | 319 (9) | 159 (13) | 126 (17) | 68 (20) | 672 (12) |
 COPD | 422 (12) | 184 (15) | 147 (20) | 48 (14) | 801 (14) |
 Type 2 diabetes mellitus | 1,086 (30) | 408 (34) | 307 (43) | 205 (59) | 2,006 (34) |
 Heart failure | 287 (8) | 191 (16) | 174 (24) | 103 (30) | 755 (13) |
 Hypertension | 1,942 (54) | 765 (64) | 509 (71) | 276 (80) | 3,492 (60) |
 History of acute myocardial infarction | 650 (18) | 314 (26) | 205 (28) | 128 (37) | 1,297 (22) |
 Peripheral vascular disease | 179 (5) | 90 (8) | 59 (8) | 39 (11) | 367 (6) |
Smoking status | |||||
 Non-smoker | 1,715 (48) | 575 (48) | 345 (48) | 170 (49) | 2,805 (48) |
 Ever-smoker | 1,859 (52) | 618 (52) | 376 (52) | 177 (51) | 3,030 (52) |