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Table 3 Estimated Annual Mean of Community-Acquired Norovirus-Associated Hospital Discharge Rate and 95% CI by Age Group and Country, 2004–2015

From: Model estimates of hospitalization discharge rates for norovirus gastroenteritis in Europe, 2004–2015

  Age group, NGE discharge rate per 10,000 person-years (95% CI)
Year <  5 years 5–9 years 10–17 years 18–59 years 60–69 years 70–79 years ≥ 80 years All ages
Austria 45.7 (41.6–50.3) 13.8 (12.3–15.4) 7.4 (6.5–8.5) 3.4 (3.1–3.7) 4.6 (3.9–5.3) 10.4 (9.1–11.8) 23.5 (20.8–26.3) 7.9 (7.5–8.2)
Denmark 37.4 (33.6–41.7) 5.1 (4.3–5.9) 2.7 (2.3–3.2) 2.0 (1.8–2.3) 3.5 (2.9–4.1) 7.5 (6.4–8.7) 16.0 (14–18.2) 5.5 (5.1–5.8)
England 8.6 (7.6–9.7) 1.5 (1.3–1.7) 0.9 (0.8–1.1) 0.6 (0.6–0.7) 1.4 (1.2–1.6) 3.0 (2.6–3.4) 8.1 (7.3–8.9) 1.8 (1.7–1.9)
Finland n/a n/a n/a 1.9 (1.7–2.1) n/a n/a n/a 8.5 (7.9–9.2)
Germany 41.1 (39.8–42.4) 9.5 (9.0–10.0) 6.8 (6.5–7.2) 3.3 (3.1–3.4) 3.7 (3.4–3.9) 8.2 (7.8–8.6) 22.4 (21.4–23.5) 6.9 (6.8–7.0)
Hungary 15.4 (13.6–17.4) 5.0 (4.3–5.7) 2.3 (1.9–2.6) 0.4 (0.4–0.5) 0.8 (0.7–0.9) 1.5 (1.3–1.8) 2.6 (2.2–3.1) 1.7 (1.6–1.9)
Italy 7.5 (6.8–8.3) 2.4 (2.1–2.8) 1.1 (1.0–1.3) 0.4 (0.4–0.5) 0.8 (0.6–0.9) 1.2 (1.0–1.4) 2.8 (2.4–3.2) 1.2 (1.1–1.2)
Lithuania 87.6 (80.5–94.3) 32.6 (29.4–36) 16.5 (15–18.1) 2.9 (2.6–3.3) 4.4 (3.7–5.2) 8.0 (6.9–9.1) 11.8 (10–13.6) 10.7 (10.2–11.1)
Poland 35.6 (33.6–37.5) 12.4 (11.4–13.5) 5.7 (5.2–6.3) 0.7 (0.6–0.8) 1.5 (1.3–1.8) 2.6 (2.2–3) 4.8 (4.2–5.5) 3.8 (3.7–4)
Portugal 21.0 (18.6–23.6) 6.0 (5.1–7) 2.6 (2.2–3.1) 0.5 (0.4–0.6) 1.6 (1.3–1.9) 2.7 (2.3–3.2) 6.1 (5.1–7.1) 2.5 (2.4–2.7)
Romania 58.4 (51.7–66) 15.9 (13.7–18.3) 7.2 (6.2–8.4) 2.0 (1.8–2.3) 3.7 (3.2–4.2) 5.5 (4.7–6.4) 6.3 (5.5–7.2) 6.7 (6.3–7.1)
Spain 10.7 (9.7–11.8) 1.9 (1.6–2.2) 0.8 (0.7–1) 0.3 (0.3–0.4) 1.3 (1.1–1.5) 2.5 (2.1–2.8) 4.5 (3.8–5.1) 1.4 (1.4–1.5)
Sweden 28.5 (24.1–33.4) 4.1 (3.4–4.9) 1.3 (1.1–1.5) 1.3 (1.1–1.4) 2.8 (2.5–3.1) 5.2 (4.6–5.9) 20.0 (18.4–21.8) 4.4 (4.1–4.8)
All 24.8 (24.1–25.4) 6.5 (6.3–6.8) 3.8 (3.6–3.9) 1.4 (1.4–1.5) 2.2 (2.1–2.3) 4.5 (4.3–4.6) 10.7 (10.4–11.1) 3.9 (3.8–3.9)
  1. Estimated NGE discharge rates per 10,000 person-years (95% CI) in individuals under 18 years old were 13.7 (11.8–15.7) and 19.3 (17.9–21.1) in individuals 60 years and older
  2. CI confidence interval, NGE norovirus-associated gastroenteritis, n/a not available