Predicting pain and its association with mortality in patients with stroke

BMC Neurology

Table 3 Associations between poststroke pain and one-year mortality

		No. of patients	HR (95% CI)	p value *
Model 1	Poststroke pain unadjusted	4069	1.55 (1.22–1.96)	< 0.001
Model 2	Poststroke pain adjusted for age, sex and region	4069	1.45 (1.14–1.84)	0.002
Model 3	Poststroke pain adjusted for age, sex, region, and stroke severity	3848	1.38 (1.08–1.78)	0.010
Model 3		4069 (imp. data)	1.37 (1.08–1.73)	0.009

* Bold text indicates significance (p < 0.05). Hazard ratios and 95% confidence intervals were calculated using Cox proportional hazard models. Model 1 represented the crude association between poststroke pain and one-year mortality. Model 2 was adjusted for age, sex, and region of birth. Model 3 was adjusted for age, sex, region of birth and stroke severity measured by National Institutes of Health Stroke Scale scores (missing observations n = 221). Global correlation between scaled Schoenfeld residuals and time: Model 1 χ²=1.89, p = 0.17; Model 2 χ²=7.59, p = 0.108; Model 3 χ²=9.08, p = 0.106.

ISSN: 1471-2377