Table 4: Variation of serum creatinine concentration

by age groups and by BMI.

Variables

Media

CI 95%

Coefficient

of variation
%

Low

limit

Up

limit

Age groups (years)

20-24

1.157

0.322

1.991

8.0

25-29

1.451

1.248

1.653

19.4

30-34

1.443

1.224

1.661

17.9

35-39

1.437

1.157

1.717

18.3

40-44

1.369

1.126

1.612

15.0

45-49

1.358

1.236

1.479

12.0

50-54

1.369

0.785

1.952

27.3

55-60

1.578

1.186

1.970

17.5

BMI classification (kg/m2)

Normal

1.402

1.248

1.556

11.8

Overweight

1.364

1.273

1.455

18.0

Obesity

1.573

1.409

1.737

14.6

BMI = body mass index.

CI = confidence intervals.