Table 4

Possible risk factors of osteoporosis at the total hip. Occurrence and logistic regression analysis

		Occurrence			Logistic regression analysis
		T⩽−2.5 (n=56)	T>−2.5 (n=324)		p Value	β	SE	OR	CI
Age ⩾60	82.1	33.3	<0.001	2.58	0.44	13.23	5.58 to 31.33
BMI^4-150 2 lowest quartiles	66.1	47.5	0.01	1.82	0.41	6.16	2.76 to 13.75
Deformed joints	59.3	32.7	<0.001	0.75	0.37	2.12	1.03 to 4.36
MHAQ^4-150⩾1.5	66.0	47.8	0.02	0.42	0.41	1.52	0.68 to 3.39
DAS^4-150 2 highest quartiles	68.6	47.6	0.006	0.01	0.42	1.01	0.45 to 2.29
Current use of corticosteroids	64.8	35.2	<0.001	1.00	0.39	2.71	1.27 to 5.78
Non-vertebral fracture	37.0	17.3	0.001	0.67	0.40	1.96	0.90 to 4.27
Constant				−5.63	0.65
Sensitivity/specificity (%)						56/89

↵4-150 BMI = body mass index; MHAQ = Modified Health Assessment Questionnaire; DAS = disease activity score.