Table 2

 Members of INoPSU

Paediatric Surveillance UnitYear foundedPopulation<15 years old (millions)Participating clinicians(number)Card return rate (%)Questionnaire return rate (%)
*Reporting by heads of hospital departments; †reporting by heads of paediatric clinics; ‡questionnaire response rate not available.
Australian Paediatric Surveillance Unit (APSU)19933.911009386
British Paediatric Surveillance Unit (BPSU)198612.725509393
Cyprus-Greece Paediatric Surveillance Unit (CGPSU)20011.28110100100
Canadian Paediatric Surveillance Program (CPSP)19967.523358396
German Paediatric Surveillance Unit (ESPED)199212462*9895
Irish Paediatric Surveillance Unit (IPSU)19961.51508580
Latvian Paediatric Surveillance Unit (LPSU)19960.4228085
Malaysian Paediatric Surveillance Unit (MPSU)19947.739575
Netherlands Paediatric Surveillance Unit (NSCK)19923.06929570
New Zealand Paediatric Surveillance Unit (NZPSU)19970.820893
Papua New Guinea Paediatric Surveillance Unit (PNGPSU)19962.04079
Portuguese Paediatric Surveillance Unit (PPSU)20011.418003566
Swiss Paediatric Surveillance Unit (SPSU)19951.338†10096
Welsh Paediatric Surveillance Unit (WPSU)19940.5813396