Table 3.

Summary of logistic regression results to predict the prescription of cold combination products

Variables	Odds ratio (95% CI)
	Univariate	p-value	Multivariatea	p-value
Increasing age	1.01 (0.97–1.06)	0.48	1.00 (0.95–1.04)	0.83
Men	0.64 (0.35–1.16)	0.17	0.59 (0.31–1.12)	0.11
Women	1.57 (0.86–2.88)	0.17	1.68 (0.89–3.18)	0.11
Increasing Charlson Comorbidity Index	1.01 (0.84–1.21)	0.93	0.91 (0.74–1.12)	0.37
Increasing number of medications	1.27 (1.15–1.39)	< 0.001	1.28 (1.16–1.41)	< 0.001
Total exemption from co-payment	2.27 (0.97–5.33)	0.08	1.75 (0.68–4.49)	0.25

^aThe following variables were adjusted: age, gender, CCI, number of medications, and total exemption from co-payment