Table 1. Characteristics of patient cohort at the time of cohort entry
VariablePatients with T2D and no previous evidence of CKD stages G3–5 (n = 32 276)
Median age, years (IQR)60 (50–70)
Sex, n (%)
 Female13 865 (43.0)
 Male18 411 (57.0)
Median duration of follow-up, years (IQR)5.01 (2.31–6.00)
Median duration of diabetes, years (IQR)1.8 (0.0–7.0)
CKD diagnosis code, n (%)1463 (4.5)
Median time to diagnosis code, years (IQR)3.10 (1.49–5.41)
eGFR-based CKD, n (%)2667 (8.3)
Median time to lab-based CKD, years (IQR)2.66 (1.26–4.41)
Lab-based or coded CKD, n (%)3102 (9.6)
Median time to lab-based or coded CKD, years (IQR)2.52 (1.12–4.36)
Deprivation decile, n (%)
 1–2 (highly deprived)13 945 (43.2)
 3–46070 (18.8)
 5–63309 (10.3)
 7–10 (least deprived)8952 (27.7)
General practices, n 60
Median number of patients per practice (IQR)472 (277–603)
  • CKD = chronic kidney disease. eGFR = estimated glomerular filtration rate. IQR = interquartile range. T2D = type 2 diabetes.