Research Article

Reference Intervals of Spot Urine Creatinine-to-Osmolality Ratio as a Surrogate of Urinary Creatinine Excretion Rate

Table 4

Comparisons of spot urine osmolality according to conditions of demographics, comorbidities, and medication use.

sUOsm, mOsm/kg
value

Sex
 Male vs. female vs. <0.001
Races
 Mexican American<0.001a
 Other Hispanic
 Non-Hispanic White
 Non-Hispanic Black
 Non-Hispanic Asian
 Other races
 African American (yes vs. no) vs. <0.001
Comorbidities (yes vs. no)
 Hypertension vs. <0.001
 Diabetes mellitus vs. 0.043
 Coronary artery disease vs. 0.325
 Congestive heart failure vs. 0.262
 Cerebrovascular disease vs. 0.004
 Active liver disease vs. 0.430
 Cancer vs. <0.001
Medication use (yes vs. no)
 ACEI/ARB vs. 0.001
β-Adrenergic blocker vs. <0.001
 Calcium channel blocker vs. <0.001
 Diuretics vs. <0.001
 Other antihypertensives vs. 0.046

Abbreviations: ACEI: angiotensin converting enzyme inhibitor; ARB: angiotensin II receptor blocker; sOsm: spot urine osmolality. aAs indicated, a comparison for the means among the various ethnic groups is performed using the one-way analysis of variance (ANOVA) along with the Bonferroni method as the post hoc test.