Table 5.

Logistic Regression Analysis of Demographic/Clinical Measures and the Suboptimal Daily PIF

Variables	B	SE	OR (95% CI)	P
Age	0.06	0.03	1.06 (1.01–1.12)	0.030
Weight	−0.02	0.02	0.98 (0.94–1.02)	0.319
With respiratory diseases	1.89	0.90	6.59 (1.14–38.15)	0.035
Sex	−0.97	0.69	0.38 (0.10–1.48)	0.164

Notes: Logistic regression analysis found that age was a risk factor for suboptimal daily PIF (OR = 1.06, 95% CI 1.01–1.12, P=0.030). Combined with respiratory diseases was also a risk factor for suboptimal daily PIF (OR = 6.59, 95% CI 1.14–38.15, P=0.035), indicated in bold.

Abbreviations: SE, standard errors; OR, odds ratios; CI, confidence interval.