Modeling Survival Time to Death among Stroke Patients at Jimma University Medical Center, Southwest Ethiopia: A Retrospective Cohort Study
Table 4
Result of multivariable Weibull AFT model.
Covariates
Categories
Coef
SE
95% CI for
value
Age
Continuous
-0.01
0.004
0.98
(0.97, 0.99)
<0.001
Atrial fibrillation (ref: no)
Yes
-0.39
0.14
0.67
(0.51, 0.94)
0.004
Alcohol consumption (ref: no)
Yes
-0.32
0.13
0.72
(0.56, 0.94)
0.013
Types of stroke (ref: ischemic)
Hemorrhagic
-0.33
0.13
0.73
(0.55, 0.93)
0.011
Hypertension (ref: no)
Yes
-0.65
0.18
0.52
(0.37, 0.75)
<0.001
Diabetes mellitus (ref: no)
Yes
-0.38
0.13
0.68
(0.52, 0.88)
0.003
Coef = estimated value of coefficients; SE = standard error, = acceleration factor; 95% CI = 95% confidence interval for acceleration factor; ref = reference. Statistically significant at 5% level.