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Table 2 Number of respondents with albuminuria by age and for persons with and without risk factors (percentages).

From: The usefulness of a free self-test for screening albuminuria in the general population: a cross-sectional survey

  Albuminuria, % (95% CI)
  Low-positive High-positive Positive total
Age groups (years)    
18-29 (n = 3,303) 29.7 (28.1 - 31.3) 3.0 (2.4 - 3.5) 32.7 (31.1 - 34.3)
30-39 (n = 7,513) 32.4 (31.4 - 33.5) 1.9 (1.6 - 2.2) 34.3 (33.3 - 35.4)
40-49 (n = 13,847) 27.0 (26.2 - 27.7) 1.7 (1.5 - 1.9) 28.7 (27.9 - 29.4)
50-59 (n = 23,160) 17.2 (16.7 - 17.7) 0.7 (0.6 - 0.8) 17.9 (17.4 - 18.4)
60-69 (n = 18,519) 12.2 (11.7 - 12.6) 0.5 (0.4 - 0.6) 12.7 (12.2 - 13.2)
70+ (n = 5,372) 12.5 (11.6 - 13.3) 0.7 (0.5 - 1.0) 13.2 (12.3 - 14.1)
Total (n = 71,714) 19.6 (19.3 - 19.9) 1.1 (1.0 - 1.1) 20.7 (20.4 - 21.0)
Presence of risk factors    
No risk factors (n = 69,768) 19.6 (19.3 - 19.9) 1.1 (1.0 - 1.1) 20.7 (20.4 - 21.0)
Diabetes mellitus (n = 4,059) 18.9 (17.7 - 20.2) 1.3 (0.9 - 1.6) 20.2 (19.0 - 21.4)
Hypertension (n = 13,868) 18.1 (17.5 - 18.8) 1.1 (0.9 - 1.2) 19.2 (18.6 - 19.9)
Diabetes mellitus and hypertension (n = 1,946) 18.9 (17.2 - 20.7) 1.2 (0.7 - 1.7) 20.1 (18.3 - 21.9)