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Table 2 Fractional clearance of urate (%) in healthy subjects in the morning and afternoon on three separate study days

From: Fractional clearance of urate: validation of measurement in spot-urine samples in healthy subjects and gouty patients

Subject

Day 1 am

Day 2 am

Day 3 am

Day 1 pm

Day 2 pm

Day 3 pm

Mean

V01

7.8

8.1

8.5

6.8

6.6

7.7

7.6

V02

6.1

8.8

6.9

8.8

11.4

9.7

8.6

V03

9.7

8.1

4.8

8.5

10.4

7.6

8.2

V04

4.2

4.9

4.8

3.4

3.8

4.9

4.4

V05

10.6

7.5

8.1

10.0

9.9

16.5

10.5

V06

8.8

7.6

6.7

7.8

7.9

7.6

7.7

V07

7.3

8.1

11.0

8.5

9.0

10.6

9.1

V08

5.7

5.0

6.3

6.7

5.5

8.0

6.2

V09

5.9

4.3

4.2

6.1

4.2

6.7

5.2

V10

6.4

6.3

7.6

9.5

9.8

9.7

8.2

V11

8.9

9.0

9.8

10.2

8.9

10.0

9.5

V12

6.7

6.5

9.9

7.9

7.9

8.9

8.0

V13

8.7

7.8

6.7

4.8

8.3

7.0

7.2

Mean

7.4

7.1

7.3

7.6

8.0

8.9

7.7

95% CI

6.3 to 8.5

6.2 to 8.0

6.1 to 8.6

6.4 to 8.8

6.5 to 9.4

7.1 to 10.5

6.7 to 8.7

  1. Study 1B; n = 13. Mean age (range) was 35.1 (21 to 73) years.