Table 3.

Univariate and multivariate analyses of influencing factors of overall survival in patients treated with frontline imatinib therapy

Variable	Univariate		Multivariate
	HR (95% CI)	p value	HR (95% CI)	p value
Sex
Female	1.00 (reference)		1.00 (reference)
Male	1.14 (0.94–1.39)	0.183	1.43 (1.18–1.75)	< 0.001
Medical insurance premium
High	1.00 (reference)		1.00 (reference)
Low	1.10 (0.90–1.33)	0.356	1.06 (0.87–1.29)	0.560
Age, yr
≤ 50	1.00 (reference)	< 0.001	1.00 (reference)	< 0.001
> 50	4.22 (3.34–5.32)		3.93 (3.11–4.97)
Medication possession ratio
Upper (≥ 0.95)	1.00 (reference)		1.00 (reference)
Middle (0.68–0.95)	5.05 (3.61–7.07)	< 0.001	4.62 (3.30–6.47)	< 0.001
Lower (< 0.68)	10.37 (7.57–14.21)	< 0.001	9.79 (7.14–13.42)	< 0.001

HR, hazard ratio; CI, confidence interval.