Table 2 Baseline characteristics of primary care population and CKD population

No. of patients

56,461

5593

–

Age in years, mean (SD)

54.7 (15.5)

70.7 (12.4)

<0.001*

Female, n (%)

37,577 (66.6%)

3468 (62.0%)

<0.001**

 Caucasian

 Black

 Hispanic

 Asian

 Other

35,323 (62.6%)

8612 (15.3%)

6900 (12.2%)

1599 (2.8%)

4027 (7.1%)

3488 (62.4%)

870 (15.6%)

806 (14.4%)

115 (2.1%)

314 (5.6%)

< 0.001**

  ≥ 90

 60–89

 30–59

 15–29

  < 15

 Not available

7386 (13.1%)

9860 (17.5%)

2888 (5.1%)

260 (0.5%)

121 (0.2%)

35,946 (63.7%)

309 (5.5%)

1572 (28.1%)

2600 (46.5%)

253 (4.5%)

120 (2.1%)

739 (13.2%)

< 0.001***

Urine microalbumin to creatinine ratio, μg/mg, median (IQR)

0 (IQR [0,35])

32.9 (IQR [0,131.1])

< 0.001***