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Table 1 Annualized incidence of IS in Germany

From: Hospital-based, prospective, multicentre surveillance to determine the incidence of intussusception in children aged below 15 years in Germany

     

Definite IS rate per 100,000 child years

Age (a) at diagnosis (year)

Number of definite completed IS cases

Estimated IS cases based on global incidence**

Time at risk years

Population at risk*

Uncorrected incidence based reported cases (definite) via ESPED

Corrected incidence ** [95%-CI]

0 < a < 1 year

358

813

2

673,139

26.6

60.4 [48.3;72.1]

0 < a < 2 years

647

1,402

2

1,361,627

23.8

51.5 [41.7;61.1]

All (< 15 years)

1,200

2,371

2

11,441,367

5.2

10.4 [8.6;12.1]

  1. *Population data for 2006 provided by the German Federal Office for Statistics
  2. **The corrected incidence is estimated by a maximum likelihood approach (taking into account the underreporting)
  3. Uncorrected annual IS incidence α in Germany based on the ESPED data and corrected IS incidence estimated by a maximum likelihood approach which takes into account the underreporting.