Table 1 Baseline demographic characteristics and major comorbid conditions among patients with diabetes, by stage of kidney disease
| Â | Non-DKD | Stage of Kidney Disease | |||
|---|---|---|---|---|---|
1–2 | 3 | 4–5 | Missing/Unknown | ||
N | 2,056,738 | 21,212 | 53,074 | 20,814 | 62,096 |
Mean age (SD), years | 52.9 (9.4) | 54.8 (8.4) | 57.7 (6.6) | 56.7 (7.3) | 54.6 (8.7) |
Age groups, years, % | |||||
 18–44 | 18.6 | 13.0 | 5.7 | 8.1 | 13.6 |
 45–54 | 31.5 | 28.3 | 20.4 | 23.4 | 27.6 |
 55–59 | 24.0 | 25.8 | 27.3 | 26.8 | 25.6 |
 60–64 | 26.0 | 32.9 | 46.7 | 41.7 | 33.2 |
Sex, % | |||||
 Male | 53.5 | 59.8 | 58.9 | 57.5 | 58.7 |
 Female | 46.5 | 40.2 | 41.1 | 42.5 | 41.3 |
Hospital stays (SD), days | 0.6 (4.0) | 2.0 (7.4) | 3.2 (9.8) | 5.4 (13.2) | 3.3 (10.9) |
Number of comorbid conditions, % | |||||
 0 | 17.4 | 1.9 | 0.9 | 1.0 | 1.8 |
 1 | 30.4 | 10.7 | 6.8 | 5.5 | 12.9 |
 2 | 29.5 | 22.3 | 17.9 | 13.0 | 23.8 |
 3 | 13.0 | 22.6 | 20.1 | 15.7 | 21.2 |
 ≥ 4 | 9.8 | 42.6 | 54.4 | 64.8 | 40.3 |
Selected comorbid conditions, % | |||||
 Congestive heart failure | 2.0 | 6.9 | 13.6 | 21.3 | 9.0 |
 Valvular disease | 1.4 | 3.5 | 5.5 | 7.7 | 4.2 |
 Cardiac arrhythmias | 3.8 | 8.5 | 12.7 | 15.0 | 10.4 |
 Hypertension, uncomplicated | 44.1 | 67.2 | 72.8 | 72.8 | 61.5 |
 Hypertension, complicated | 1.7 | 16.2 | 23.9 | 34.3 | 12.2 |
 Peripheral vascular disorders | 1.6 | 4.8 | 7.1 | 9.7 | 5.3 |
 Pulmonary circulation disorders | 0.6 | 1.9 | 3.2 | 4.2 | 2.6 |
 Chronic pulmonary disease | 5.8 | 9.7 | 12.1 | 13.4 | 10.5 |
 Liver disease | 2.1 | 4.2 | 4.3 | 5.9 | 4.9 |
 Peptic ulcer disease excluding bleeding | 0.2 | 0.5 | 0.5 | 0.7 | 0.5 |
 Blood loss anemia | 0.3 | 0.7 | 1.0 | 1.7 | 0.8 |
 Deficiency anemia | 1.6 | 4.3 | 5.9 | 9.0 | 3.7 |
 Coagulopathy | 0.7 | 1.9 | 2.8 | 3.9 | 2.6 |
 Stroke | 1.6 | 4.2 | 6.1 | 7.6 | 4.8 |
 Paralysis | 0.3 | 0.7 | 0.9 | 1.2 | 1.0 |
 Other neurological disorder | 1.2 | 2.6 | 3.3 | 4.9 | 3.4 |
 Hypothyroidism | 7.9 | 9.9 | 11.6 | 10.7 | 10.7 |
 Fluid and electrolyte disorders | 2.8 | 11.4 | 16.3 | 25.4 | 14.6 |
 RA/collagen vascular disease | 1.9 | 3.6 | 4.0 | 3.7 | 3.0 |
 AIDS/HIV | 0.2 | 0.3 | 0.4 | 0.4 | 0.3 |
 Lymphoma | 0.3 | 0.6 | 0.9 | 1.2 | 0.8 |
 Solid tumor without metastasis | 3.0 | 4.7 | 6.5 | 6.0 | 5.0 |
 Metastatic cancer | 0.4 | 0.7 | 1.3 | 1.4 | 1.3 |
 Obesity | 6.5 | 12.8 | 13.3 | 12.9 | 13.2 |
 Weight loss | 0.6 | 1.4 | 1.9 | 3.3 | 2.0 |
 Depression | 6.4 | 8.3 | 9.3 | 8.4 | 9.7 |
 Psychoses | 0.4 | 0.9 | 1.2 | 1.5 | 1.2 |
 Alcohol abuse | 0.6 | 1.1 | 1.1 | 1.7 | 1.5 |
 Drug abuse | 0.4 | 0.8 | 0.8 | 1.0 | 1.1 |