Characteristics of the use of cold combination products among older ambulatory patients at the National Hospital Organization Tochigi Medical Center in Japan: a retrospective single-center observational study

Table 3 Summary of logistic regression results to predict the prescription of cold combination products

Variables	Odds ratio (95% CI)
Variables	Univariate	p-value	Multivariate^a	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

ISSN: 1756-0500