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Table 1 Descriptive data of the derivation (SSS) and validation population (SKIPOGH), by sex

From: New anthropometry-based age- and sex-specific reference values for urinary 24-hour creatinine excretion based on the adult Swiss population

  SSS SKIPOGH
Variables Men Women Men Women
Number 550 587 473 521
Age (years) 48.1 (17.2) 46.2 (16.8) 47.0 (17.6) 47.6 (16.7)
Weight (kg) 81.7 (14.2) 66.3 (13.2)a 81.5 (12.9) 65.4 (12.6)a
Height (cm) 176.5 (7.0) 164.6 (6.7)a 177.4 (6.8)d 164.9 (6.4)a
BMI (kg/m2) 26.2 (4.1) 24.5 (4.8)a 25.9 (4.1) 24.1 (4.6)a
Hypertension (Number, %) 180 (32.8) 100 (17.0)a 130 (27.5) 96 (18.5)a
Diabetes (Number, %) 40 (7.3) 39 (6.6) 30 (6.3) 13 (2.5)b
Plasma creatinine (μmol/L) 86.6 (11.5) 69.0 (8.8)a 80.2 (11.0)c 65.8 (9.3)ac
eGFR CKD-EPI (ml/min/1.73 m2) 92.1 (15.4) 92.0 (16.6) 99.0 (16.7)c 95.5 (15.7)ac
Duration of urine collection (minutes) 1442 (65) 1447 (78) 1442 (81) 1436 (76)d
Volume of urine collection (ml) 1928 (876) 2072 (922) 1698 (756)c 1719 (702)c
Urinary creatinine excretion (μmol/24 hours) 15620 (3768) 9821 (2518)a 15651 (3413) 10273 (2383)ac
Urinary creatinine excretion (μmol /kg/24 hours) 193 (41) 151 (38)a 194 (42) 161 (40)ac
  1. Data are expressed as mean (SD) unless otherwise specified. aP <0.001 compared to men; bP <0.01 compared to men; cP <0.001 compared to SSS; dP <0.05 compared to SSS. SSS: Swiss Survey on Salt.