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Table 1 Pediatric hospital admissions in Italy by primary diagnosis and age group (period 2009–11)

From: Empirical examination of the indicator ‘pediatric gastroenteritis hospitalization rate’ based on administrative hospital data in Italy

Age group N %* Average annual rate (per 1,000) RR (95% CI)
Non-bacterial gastroenteritis
<1-year 13,492 3.5 7.99 24.2 (23.0–25.5)
1–4 years 32,735 6.0 4.79 14.5 (13.8–15.2)
5–9 years 8,959 2.4 1.06 3.2 (3.0–3.4)
10–14 years 4,216 1.2 0.50 1.5 (1.4–1.6)
15–17 years 1,728 0.7 0.33 Ref.
Total 61,130 3.3 1.99  
Bacterial gastroenteritis
<1-year 750 0.2 0.44 8.8 (7.5–10.4)
1–4 years 2,949 0.5 0.43 8.6 (7.4–9.9)
5–9 years 1,352 0.4 0.16 3.2 (2.9–4.0)
10–14 years 653 0.2 0.08 1.6 (1.5–2.0)
15–17 years 236 0.1 0.05 Ref.
Total 5,940 0.3 0.19  
Dehydration
<1-year§ 6,047 1.6 3.58 59.7 (54.3–68.3)
1–4 years 23,389 4.3 3.42 57.0 (52.0–65.1)
5–9 years 6,646 1.8 0.78 13.0 (11.9–14.9)
10–14 years 2,430 0.7 0.29 4.8 (4.4–5.5)
15–17 years 308 0.1 0.06 Ref.
Total 38,820 2.1 1.27  
  1. *Percentage over total pediatric hospitalizations in Italy (except Major Diagnostic Category codes 14 [pregnancy, childbirth and puerperium] and 15 [newborns and other neonates]).
  2. In <1-year group, 2,425 children (18.0%) were aged less than 3 months.
  3. One hundred fifty-two children (20.3%) were aged less than 3 months.
  4. §Six hundred fifty-eight children (10.9%) were aged less than 3 months.
  5. RR, relative risk; 95% CI, 95% confidence interval.
  6. Data source: Ministry of Health.