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Table 2 Summary of response rates for each center

From: Determinants of response to a parent questionnaire about development and behaviour in 3 year olds: European multicentre study of congenital toxoplasmosis

    Reasons for non-response (% non-responders)
Study Center Response rate (%) Total non-responders Address not known Refused to participate No response Other1
FRANCE       
Lyon 73% 50 12 (24) 1 (2) 37 (74) 0
Paris 50% 91 46 (50) 0 45 (49) 0
Grenoble 24% 26 1 (4) 0 25 (96) 0
Marseille 76% 22 17 (77) 0 4 (18) 1 (4)
Nice 75% 11 8 (73) 3 (6) 0 0
Toulouse 60% 29 21 (72) 0 8 (28) 0
AUSTRIA       
Vienna 72% 53 21 (40) 32 (60) 0 0
ITALY       
Naples 94% 3 1(33) 2 (66) 0 0
SWEDEN       
Stockholm 50% 8 3 (37) 1 (12) 2 (25) 2 (25)*
POLAND       
Poznan 74% 46 20 (43) 21 (46) 4 (9) 1 (2)
DENMARK       
Copenhagen 64% 5 1 (20) 0 4 (80) 0
TOTAL   344 151 (44) 60 (17) 129 (37) 4 (1)
  1. 1 Other reasons eg. died, mentally retarded parents