Table 5.

Multivariate Stroke‐Free Survival Analysis of Patients With Thorax, Head, or Neck Cancer Treated With Radiotherapy by the Cox Proportional Hazard Model With Age as a Continuous Variable

	Hazard Ratio	95% CI	P Value
Age (continuous)	1.03	1.01–1.06	0.0101
Sexa	1.30	0.94–1.78	0.1086
Atrial fibrillation	1.42	0.999–2.03	0.0506
CAD/MI	1.17	0.62–2.20	0.6212
CKD	1.63	1.09–2.44	0.0168
CVD	3.76	2.66–5.33	<0.0001
Diabetes mellitus	1.06	0.75–1.50	0.7308
Dyslipidemia	1.07	0.75–1.53	0.7034
Heart failure	1.15	0.79–1.67	0.4618
Hypertension	0.83	0.58–1.18	0.4618
Statin use	0.68	0.48–0.98	0.0368

CAD indicates coronary artery disease; CKD, chronic kidney disease; CVD, cerebrovascular disease; MI, myocardial infarction.

^aReference female sex.