Table 4.

Logistic regression of osteoporosis

	Unadjusted			Adjusteda
	P value	OR	95% CI	P value	OR	95% CI
eGFR (ml/min/1.73m2)b
≥90	0.039	1.00 (ref)		0.738	1.00 (ref)
< 90		1.38	1.02–1.86		0.94	0.67–1.33

CI confidence interval, eGFR estimated glomerular filtration rate, OR odds ratio

^aAdjustment for age, menopausal duration and BMI

^beGFR calculated using the CKD Epidemiology Collaboration 2009 equation