Table 4. Comparison of the detection rate of osteopenia or osteoporosis in different BMI group.

BMI	Unadjusted-OR		Adjusted-OR*
(Kg/m2)	OR (95%CI)	p-value	Adj.OR (95%CI)	p-value
<20	3.105(1.233–7.818)	0.0162	2.688(1.057–6.833)	0.0378
≥20<24	1		1
≥24<28	0.513(0.320–0.823)	0.0057	0.461(0.283–0.751)	0.0019
≥28	0.405(0.186–0.879)	0.0224	0.445(0.201–0.986)	0.0461

Abbreviations: BMI = body mass index, OR = odd ratio, Adj.OR = adjusted odd ratio, CI = confidence interval, Adjusted-OR

*: adjusted for age.