Association between vitamin D level and hematuria from a dipstick test in a large scale population based study: Korean National Health and nutrition examination survey

Table 4 Risk of hematuria after stratification by sex and menopausal status

	Male		Female		Pre-menopausal females		Post-menopausal females
	OR (95% CI)^a	P	OR (95% CI)^a	P	OR (95% CI)^a	P	OR (95% CI)^a	P
Quartiles
1st quartile	1 (reference)		1 (reference)		1 (reference)		1 (reference)
2nd quartile	1.23 (1.014–1.498)	0.036	1.09 (0.941–1.266)	0.247	0.94 (0.726–1.225)	0.659	1.18 (0.986–1.418)	0.071
3rd quartile	1.38 (1.121–1.706)	0.002	1.20 (1.035–1.386)	0.015	1.12 (0.875–1.433)	0.369	1.19 (0.991–1.437)	0.062
4th quartile	1.35 (1.080–1.695)	0.007	1.38 (1.200–1.593)	< 0.001	1.15 (0.905–1.460)	0.253	1.58 (1.320–1.892)	< 0.001
Vitamin D inadequacy
Normal	1 (reference)		1 (reference)		1 (reference)		1 (reference)
Inadequacy	1.32 (0.915–1.889)	0.139	1.50 (1.127–1.989)	0.005	1.10 (0.597–2.019)	0.764	1.62 (1.177–2.237)	0.003
Vitamin D deficiency
Normal	1 (reference)		1 (reference)		1 (reference)		1 (reference)
Deficiency	1.26 (1.077–1.481)	0.004	1.24 (1.101–1.393)	< 0.001	1.15 (0.933–1.419)	0.188	1.29 (1.123–1.491)	< 0.001

OR odds ratio, CI confidence interval
^aAdjusted for age, alcohol, smoking, diabetes, hypertension, hypercholesterolemia, anemia, chronic kidney disease, glycosuria, and proteinuria

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