Table 1 Sociodemographic characteristics of patients included in, and excluded from, the study
Sociodemographic characteristica | Included in the study N = 3505 | Excluded from study N = 113,308 |
|---|---|---|
n (%) | n (%) | |
Gender | ||
Male | 1838 (52.4) | 60,572 (53.5) |
Female | 1667 (47.6) | 52,709 (46.5) |
Not known | 27 (0.02) | |
Age (years) | ||
Age, mean (SD) | 77.4 (9.0) | 66.8 (13.5) |
Age, median (Q1, Q3) | 78 (72, 84) | 68 (58, 77) |
Age group (years) | ||
18–29 | – | 892 (0.8) |
30–39 | 7 (0.2) | 3113 (2.8) |
40–49 | 17 (0.5) | 8550 (7.6) |
50–59 | 99 (2.8) | 18,883 (16.7) |
60–69 | 521 (14.9) | 30,687 (27.1) |
70–79 | 1301 (37.1) | 30,750 (27.1) |
≥ 80 | 1560 (44.5) | 20,433 (18.0) |
Indigenous status | ||
Aboriginal and/or Torres Strait Islander | 66 (1.9) | 3033 (2.7) |
Not Aboriginal nor Torres Strait Islander | 2734 (78.0) | 87,427 (77.2) |
Not known | 705 (20.1) | 22,848 (20.2) |
Ruralityb | ||
Major cities of Australia | 2039 (58.6) | 65,244 (57.6) |
Inner Regional Australia | 975 (28.0) | 32,422 (28.6) |
Outer Regional Australia | 413 (11.9) | 13,536 (12.0) |
Remote Australia | 41 (1.2) | 1207 (1.1) |
Very Remote Australia | 14 (0.4) | 294 (0.3) |
Not known | 23 (0.7) | 605 (0.5) |
Duration of known diabetes | ||
Duration of diabetes (years), mean (SD) | 12.2 (7.9) | 8.7 (6.8) |
Duration of diabetes (years), median (Q1, Q3) | 11.2 (6.0, 16.8) | 7.1 (3.5, 12.4) |
Not known | 740 (21.1) | 27,357 (24.1) |
HbA1cc, mean (SD) | ||
% (NGSPd) | 7.3 (1.3) | 7.1 (1.4) |
mmol/mol (IFCCe) | 56.1 (14.2) | 53.7 (15.3) |
Not known | 750 (21.4) | 37,121 (32.8) |
Average Glomerular filtration rate (ml/min/1.73m2) | ||
≥ 60 | 0 | 80,127 (78.0) |
45–59 | 1909 (54.5) | 12,533 (12.2) |
30–44 | 1261 (36.0) | 6985 (6.8) |
15–29 | 290 (8.3) | 2465 (2.4) |
< 15 | 45 (1.3) | 616 (0.6) |
Not known | 10,582 (9.3) | |
BMI (kg/m2) | ||
Underweight (< 18.5) | 11 (0.4) | 465 (0.5) |
Normal (18.5 to < 25) | 386 (12.6) | 12,240 (12.3) |
Overweight (25 to 30) | 1023 (33.5) | 30,069 (30.3) |
Obese (> 30) | 1634 (53.5) | 56,392 (56.9) |
Not known | 451 (12.9) | 14,142 (12.5) |
Comorbidities | ||
Hypertension | 2855 (81.5) | 75,500 (66.6) |
Coronary Heart Disease (CHD) | 982 (28.0) | 19,483 (17.2) |
Heart failure (HF) | 440 (12.6) | 6250 (5.5) |
Stroke | 394 (11.2) | 7300 (6.4) |
Amputation | 29 (0.8) | 632 (0.6) |
Impaired vision | 129 (3.7) | 2565 (2.3) |
Retinopathy | 182 (5.2) | 3411 (3.0) |
Medications | ||
On insulinf | 949 (27.1) | 4626 (29.8) |
On erythropoietin agonistg | 12 (0.3) | 113 (0.1) |