Table 3.

Independent mortality predictors in all participants by Cox proportional hazards regression

Variable	Crude Hazard Ratio (95% CI)	Adjusted Hazard Ratio (95% CI)a
APAP poisoning
Yes	8.0 (6.3–10.2)	7.4 (5.8–9.6)
No	1.0	1.0
Age (years)
≤ 20	1.0	1.0
21–39	2.5 (1.3–4.7)	3.0 (1.5–5.6)
40–64	7.8 (4.1–15.1)	6.2 (3.2–12.3)
≥ 65	41.4 (21.6–79.5)	14.9 (7.2–30.9)
Sex
Male	2.6 (2.1–3.2)	2.1 (1.6–2.6)
Female	1.0	1.0
DM
Yes vs. No	8.3 (6.2–10.9)	1.6 (1.2–2.3)
CAD
Yes vs. No	1.0 (7.7–12.9)	1.3 (0.9–1.8)
Stroke
Yes vs. No	13.5 (1.0–18.3)	1.2 (0.8–1.7)
HTN
Yes vs. No	9.1 (7.3–11.4)	1.5 (1.0–2.1)
Liver disease
Yes vs. No	3.8 (3.0–4.8)	1.4 (1.1–1.9)
Renal disease
Yes vs. No	3.5 (2.7–4.6)	1.1 (0.8–1.4)
Mental Disorder
Yes vs. No	3.8 (3.0–4.7)	1.28 (0.9–1.5)
Cancer
Yes vs. No	10.1 (7.3–14.0)	2.6 (1.8–3.6)
Geographic region
Northern	0.2 (0.1–0.8)	0.1 (0.03–0.3)
Central	0.2 (0.04–0.8)	0.1 (0.03–0.5)
Southern	0.3 (0.1–1.1)	0.2 (0.04–0.5)
Eastern	1.0	1.0
Monthly income
NTD ≤ 15,840	4.5 (2.9–6.9)	2.2 (1.4–3.5)
NTD 15840–25,000	2.3 (1.5–3.7)	1.6 (1.0–2.5)
NTD ≥ 25,001	1.0	1.0

^aAdjusted for all the variables. APAP Acetaminophen, CI Confidence interval, DM Diabetes mellitus, CAD Coronary artery disease, HTN Hypertension, NTD New Taiwan dollar