Characteristics of participants with type 2 diabetes (T2D)
| Demographics | Total N=69 718 | T2D only N=6392 | T2D + ≥1 chronic condition N=63 326 | P value |
| Age, years, mean (SD) | 66.42 (12.70) | 66.41 (12.53) | 66.42 (12.71) | 0.948 |
| Female, n(%) | 32 137 (46.1) | 3017 (47.2) | 29 120 (46.0) | 0.172 |
| Missing | 29 (0.0) | 3 (0.1) | 26 (0.0) | |
| SEIFA deciles, n(%) | 0.082 | |||
| Decile 1—most deprived | 6223 (8.9) | 606 (9.5) | 5617 (8.9) | |
| Decile 2 | 7924 (11.4) | 729 (11.4) | 7195 (11.4) | |
| Decile 3 | 5367 (7.7) | 449 (7.0) | 4918 (7.8) | |
| Decile 4 | 7508 (10.8) | 696 (10.9) | 6812 (10.8) | |
| Decile 5 | 7343 (10.5) | 657 (10.3) | 6686 (10.6) | |
| Decile 6 | 8169 (11.7) | 801 (12.5) | 7368 (11.6) | |
| Decile 7 | 6344 (9.1) | 579 (9.1) | 5765 (9.1) | |
| Decile 8 | 6192 (8.9) | 588 (9.2) | 5604 (8.9) | |
| Decile 9 | 7630 (10.9) | 676 (10.6) | 6954 (11.0) | |
| Decile10—least deprived | 6402 (9.2) | 550 (8.6) | 5852 (9.2) | |
| Missing | 616 (0.9) | 61 (1.0) | 555 (0.9) | |
| Smoking status, n(%) | 0.912 | |||
| Current/previous | 31 608 (45.3) | 2917 (45.6) | 28 691 (45.3) | |
| Never smoked | 32 792 (47.0) | 3004 (47.0) | 29 788 (47.0) | |
| Missing | 5318 (7.6) | 471 (7.4) | 4847 (7.7) | |
| HbA1c, mmol/mol, mean (SD) | 54 (16) | 54 (16) | 54 (16) | 0.672 |
| HbA1c, %, mean (SD) | 7.1 (1.4) | 7.1 (1.4) | 7.1 (1.4) | 0.672 |
| HbA1c, %, n(%) | 0.449 | |||
| ≤7 | 41 265 (59.2) | 3755 (58.7) | 37 510 (59.2) | |
| >7 | 28 453 (40.8) | 2637 (41.3) | 25 816 (40.8) | |
| Diabetes medication, n(%) | 0.278 | |||
| No medication | 19 556 (28.1) | 1734 (27.1) | 17 822 (28.1) | |
| 1 antidiabetic medication | 23 762 (34.1) | 2225 (34.8) | 21 537 (34.0) | |
| 2 antidiabetic medications | 12 879 (18.5) | 1158 (18.1) | 11 721 (18.5) | |
| 3 antidiabetic medications | 3037 (4.4) | 264 (4.1) | 2773 (4.4) | |
| ≥4 antidiabetic medications | 244 (0.4) | 25 (0.4) | 219 (0.4) | |
| Insulin use only | 2930 (4.2) | 281 (4.4) | 2649 (4.2) | |
| Insulin +antidiabetic medication(s) | 7310 (10.5) | 705 (11.0) | 6605 (10.4) | |
| No of chronic conditions, n(%) | n/a | |||
| T2D only | 6392 (9.2) | 6392 (100) | n/a | |
| T2D+1 chronic condition | 8497 (12.2) | n/a | 8497 (13.4) | |
| T2D+2 chronic condition | 10 614 (15.2) | n/a | 10 614 (16.8) | |
| T2D+3 chronic condition | 10 516 (15.1) | n/a | 10 516 (16.6) | |
| T2D +≥4 chronic conditions | 33 699 (48.3) | n/a | 33 699 (53.2) | |
| Concordant conditions only, n(%) | 5175 (7.4) | n/a | 5175 (8.2) | |
| Discordant conditions only, n(%) | 14 593 (20.9) | n/a | 14 593 (23.0) |
HbA1c, glycated haemoglobin; n/a, not applicable; SEIFA, Socio-Economic Indexes for Areas.