Table 1.

Data relative to 147 cases of liver injuries collected during 5 weeks in University Hospital: number of patients, percentages, incidence rate and confidence interval of incidence rate corresponding to several diagnosis or conditions associated to liver injuries.

	Number of cases	% of patients	Incidence rate (for 1000 inpatients a week)	Confidence interval of incidence rate⋆ (for 1000 inpatients a week)
Cardiac diseases	21	14.3	10.7	6.6–16.3
Alcohol intoxication	21	14.3	10.7	6.6–16.3
Obstructive	20	13.6	10.2	6.2–15.7
cholelithiasis hepatitis
Neoplastic diseases	20	13.6	10.2	6.2–15.7
Drug-induced liver	13	8.8	6.6	3.5–11.3
disturbances
Bacterial infections	13	8.8	6.6	3.5–11.3
Viral infections	6	4.1	3.1	1.1–6.6
Auto-immune hepatitis	3	2.0	1.5	0.3–4.4
Parenteral alimentation	3	2.0	1.5	0.3–4.4
Paget's disease	2	1.4	1.0	0.1–3.6
Crohn's disease	1	0.7	0.5	0–1.8
Hepatic amylosis	1	0.7	0.5	0–1.8
Hypovolaemic shock	1	0.7	0.5	0–1.8
Regenerative nodulus	1	0.7	0.5	0–1.8
hepatitis
Insulin-dependent-	1	0.7	0.5	0–1.8
diabetes
No specific causes	4	2.7	Not applicable	Not applicable
Mixed aetiologies	5	3.4	Not applicable	Not applicable
Lost of follow up	5	3.4	Not applicable	Not applicable
Insufficient information	6	4.1	Not applicable	Not applicable

^⋆Two sided Poisson confidence intervals (CI).