Table 6.

Multivariable regression for predictors of severity of clinical status and hospitalization. CI Confidence interval; OR Odds ratio; CO Carbon monoxide; CAV National Poison Control Center. ^aIncluding plants/mushrooms, cosmetics, pet food and viper bite

	Seriousness of clinical status (serious vs. no serious)	Hospitalization (yes vs no)	Lenght of stay at the emergency room (at least 12 h vs less than 12 h)
Predictor variables	Adjusted OR (95% CI)	p value	Adjusted OR (95% CI)	p value	Adjusted OR (95% CI)	p value
Gender
Female	1		1		1
Male	0.70 (0.45–1.10)	0.124	0.75 (0.57–0.98)	0.040	0.75 (0.56–0.99)	0.045
Age in years
< 1	1.28 (0.40–4.09)	0.671	0.59 (0.59–1.37)	0.158	0.55 (0.24–1.28)	0.168
1–4	1.64 (0.62–4.31)	0.319	0.42 (0.18–0.98)	0.046	0.84 (0.42–1.66)	0.611
5–9	0.99 (0.337–2.91)	0.985	0.43 (0.16–1.15)	0.093	0.96 (0.45–2.05)	0.924
10–14	1		1		1
Nationality
European	–		1		–
Extra-European	–		3.47 (1.82–6.62)	< 0.001	–	0.126
Advice from CAV
No	1		1		1
Yes	4.89 (3.01–7.93)	< 0.001	1.12 (0.58–2.16)	0.743	1.63 (1.06–2.50)	0.027
Mode of poisoning
Accidental	1		1		1
Intentional	2.48 (0.43–14.23)	0.309	3.22 (1.34–7.74)	0.009	3.3 (1.35–8.09)	0.009
Therapeutic error	0.595 (0.28–1.27)	0.178	2.74 (1.27–5.91)	0.010	1.91 (1.17–3.12)	0.008
Number of substances
1	1		1		1
≥ 2	5.56 (1.73–42.24)	0.097	1.24 (0.46–3.31)	0.666	1.94 (1.05–3.58)	0.035
Type of substances
Pharmaceutics	1		1		1
CO/Fumes	10.18 (1.27–21.87)	0.029	2.88 (0.94–8.80)	0.063	3.79 (1.77–8.13)	0.001
Household cleaning products	0.64 (0.34–1.19)	0.158	1.81 (0.96–3.42)	0.067	1.42 (0.98–2.04)	0.060
Cosmetics	0.40 (0.16–1.00)	0.050	0.17 (0.02–1.50)	0.112	0.83 (0.40–1.72)	0.618
Alcohol and recreational drugs	0.98 (0.26–3.67)	0.980	1.09 (0.30–3.91)	0.899	2.06 (1.04–4.09)	0.038
Others a	0.42 (0.22–0.79)	0.008	0.95 (0.42–2.15)	0.907	0.81 (0.51–1.28)	0.37
Intercept	3.317	0.034	0.097	< 0.001	0.266	0.001