Table 1 Comparison of the clinical characteristics of people with complete vs missing data for macrovascular complications
|  | UK | FRANCE | Spain—HM | Spain—Barcelona | ||||
|---|---|---|---|---|---|---|---|---|
|  | Complete data (n = 1846) | Missing data (n = 1333) | Complete data (n = 1510) | Missing data (n = 1333) | Complete data (n = 406) | Missing data (n = 0) | Complete data (n = 344) | Missing data (n = 23) |
Age (mean, SD) years | 72.5 (13.9) | 70.8 (14.4) | 70.1 (13.0) | 69.1 (13.3) | 74.7 (11.9) | – | 71.1 (13.9) | 74.0 (14.7) |
Missing, n | 0 | 6 | 0 | 0 | 0 | – | 1 | 0 |
Men, n (%) | 1140 (62) | 802 (60) | 933 (62) | 882 (66) | 250 (62) | – | 202 (59) | 11 (48) |
Missing, n | 0 | 5 | 0 | 0 | 0 | – | 0 | 0 |
BMI (mean, SD) kg/m2 | 29.3 (7.2) | 28.6 (6.9) | 29.9 (5.7) | 28.9 (6.1) | NA | – | 29.8 (6.6) | 33.2 (5.8) |
Missing, n | 0 | 860 | 0 | 124 | NA | – | 295 | 21 |
Ethnicity |  |  |  |  |  | – |  |  |
 White, n (%) | 1291 (70) | 624 (60) | 893 (59) | 517 (56) | NA | – | 77 (87) | 18 (86) |
 Asian, n (%) | 275 (15) | 167 (16) | 55 (4) | 33 (4) | NA | – | 1 (1) | 1 (5) |
 Black, n (%) | 116 (6) | 94 (9) | 242 (16.0) | 179 (20) | NA | – | 2 (2) | 0 (0) |
 Other, n (%) | 164 (9) | 157 (15) | 320 (21) | 187 (20) | NA | – | 9 (10) | 2 (10) |
 Missing, n | 0 | 291 | 0 | 417 | NA | – | 255 | 2 |
Type of diabetes | Â | Â | Â | Â | Â | Â | Â | Â |
 Type 1, n (%) | 93 (5) | 62 (5) | 48 (3) | 13 (1) | 4 (1) | – | 5 (5) | 0 (0.0) |
 Type 2, n (%) | 1753 (95) | 1163 (95) | 1462 (97) | 1079 (99) | 402 (99) |  | 88 (95) | 23 (100.0) |
 Missing, n | 0 | 108 | 0 | 241 | 0 | – | 251 | 0 |
Hypertension, n (%) | 1286 (70) | 774 (66) | 1204 (80) | 953 (73.0) | 286 (70) | – | 278 (81) | 18 (78) |
 Missing, n | 0 | 166 | 0 | 28 | 0 | – | 0 | 0 |
Dyslipidaemia, n (%) | NA | NA | 767 (51) | 521 (42) | 198 (49) | – | NA | NA |
 Missing, n | - | - | 0 | 81 | 0 | – | – | – |
Microvascular disease, n (%) | 807 (44) | 242 (39) | 701 (46) | 206 (42) | 38 (9) | – | 15 (17) | 0 |
 Missing, n | 0 | 710 | 0 | 848 | 0 | – | 257 | 23 |
Macrovascular disease, n (%) | 804 (44) | 272 (40) | 640 (42) | 477 (39) | 98 (24) | – | 110 (32) | NA |
 Missing, n | 0 | 652 | 0 | 109 | 0 | – | 0 | 23 |
Death (in-hospital mortality), n (%) | 715 (39) | 524 (39) | 290 (19) | 294 (22) | 79 (20) | – | 88 (28) | 8 (36) |
 Missing, n | 0 | 0 | 0 | 7 | 0 | – | 18 | 1 |
ICU admission, n (%) | 193 (10) | 125 (13) | 412 (27) | 439 (33) | 35 (9) | – | 59 (17) | 1 (5) |
 Missing, n | 0 | 337 | 0 | 14 | 0 | – | 1 | 1 |
Use of IMV, n (%) | NA | NA | 269 (18) | 297 (23) | 37 (9) | – | NA | NA |
 Missing, n | - | - | 0 | 14 | 0 | – | – | – |