a positive trendp=0.08
No schooling was a significant risk factor among patients at stages 2 and 3, and among patients at stage 4 a positive trend was found (HR 1.22 (95% CI 0.98 to 1.52), p=0.08).
No schooling was a significant risk factor among patients at stages 2 and 3, and among patients at stage 4 a positive trend was found (HR 1.22 (95% CI 0.98 to 1.52), p=0.08).