Table 4.

Independently associated factors with frailty using multivariate analysis.

Parameters	Odds ratio	95% confidence interval		P-value
		Lower limit	Upper limit
PSQI	1.308	1.092	1.566	0.004*
Basic ADL	0.383	0.207	0.706	0.002*
Sex (female)	5.489	1.063	28.337	0.042*

*: statistically significant, ADL: activities of daily living, PSQI: Pittsburg Sleep Quality Index. The parameters with a P-value of <0.200 were included in the multivariate analysis to identify factors that were independently associated with frailty. These parameters were PSQI, numbers of comorbidities, basic ADL, Mini-Mental State Examination, Mini-Nutritional Assessment, Geriatric Depression Scale-15, sex, age, hypertension, and osteoporosis. Backward stepwise model was used and last model (step-8) was presented in this table. Omnibus test for this model had a P-value of <0.001. Hosmer and Leme show test had a P-value of >0.050. Nagelkerke R square was 0.772 for this model.