Table 1

Parameter estimates for the frequency of monitoring renal function in primary care

nRate per year (95% CI)
Renal function as measured by eGFR (mL/min/1.732)
 >60 (Reference)146 6041.09 (1.09 to 1.11)
 45–59 (3a)16 3431.12 (1.11 to 1.12)
 30–44 (3b)37231.26 (1.25 to 1.27)
 15–29 (4)7911.43 (1.40 to 1.47)
  <15 (5)2401.28 (1.23 to 1.33)
Albuminuria
 Not measured167 1281
 <3 mg/mmol4301.07 (1.03 to 1.12)
 3–30 mg/mmol1161.06 (0.98 to 1.15)*
 >30 mg/mmol271.39 (1.19 to 1.60)
Time of initial measurement
 Pre-199838 6791
 1999–200363 5301.06 (1.05 to 1.06)
 2004–200851 9981.16 (1.16 to 1.17)
 2009–201313 4941.88 (1.86 to 1.89)
Age (years)
 <2093981
 21–4036 8380.99 (0.98 to 1.00)*
 41–6061 1061.20 (1.19 to 1.21)
 61–8051 4051.45 (1.43 to 1.46)
 81–10089541.51 (1.49 to 1.53)
Not measured105 7701
HbA1c (mmol/mol)
 <4849 5701.11 (1.10 to 1.11)
 48–5856911.70 (1.69 to 1.71)
 >5866701.77 (1.77 to 1.79)
Sex
 Male74 0141
 Female93 6870.98 (0.97 to 0.98)
  • *Significant at p<0.001 except.

  • eGFR, estimated glomerular filtration rate; HbA1c, glycated haemoglobin.