TABLE 1.
Median values for measures of albumin and creatinine level and urinary volume and derived microalbuminuria cutoff points for albumin:creatinine ratio and urinary albumin concentration, by gender and country, International Study of Macronutrients and Blood Pressure, 1996–2002
| Variable | Japan |
China |
United Kingdom |
United States |
Total |
|||||
|---|---|---|---|---|---|---|---|---|---|---|
| Men | Women | Men | Women | Men | Women | Men | Women | Men | Women | |
| No. of subjects* | 254 | 280 | 152 | 208 | 129 | 149 | 315 | 446 | 850 | 1,083 |
| 24-hour albumin excretion (mg) | 5.40 | 3.99 | 4.18 | 5.22 | 4.36 | 4.16 | 6.58 | 4.81 | 5.36 | 4.48 |
| Albumin:creatinine ratio (mg/g) | 3.55 | 4.00 | 3.84 | 6.45 | 2.73 | 3.69 | 3.82 | 4.49 | 3.42 | 4.50 |
| Albumin concentration (mg/liter) | 3.33 | 2.85 | 2.40 | 2.95 | 2.15 | 2.35 | 3.00 | 2.25 | 2.80 | 2.55 |
| Creatinine level (g) | 1.50 | 0.99 | 1.18 | 0.83 | 1.72 | 1.11 | 1.78 | 1.13 | 1.56 | 1.03 |
| Urinary volume (liters) | 1.63 | 1.47 | 1.91 | 1.70 | 1.89 | 1.73 | 2.09 | 2.00 | 1.84 | 1.74 |
| Cutoff point for albumin: creatinine ratio (mg/g)† | 19.7 | 30.4 | 24.7 | 34.6 | 17.9 | 26.5 | 16.3 | 25.5 | 18.4 | 28.0 |
| Cutoff point for albumin concentration (mg/liter)‡ | 18.8 | 21.3 | 16.2 | 18.6 | 16.6 | 17.6 | 15.1 | 15.7 | 16.3 | 17.5 |
*
Number of men or women with albumin concentrations ≥1.0 mg/liter in both urine samples.
†
Obtained by dividing 30 mg by mean 24-hour creatinine excretion for all men and women in each country or overall in the total sample of 4,678.
‡
Obtained by dividing 30 mg by mean 24-hour urinary volume for all men and women in each country or overall in the total sample of 4,678.