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Table 1 Socio-demographic and clinical characteristics of the population at baseline

From: Development and psychometric validation of a self-administered questionnaire assessing the acceptance of influenza vaccination: the Vaccinees' Perception of Injection (VAPI©) questionnaire

  Belgium (n = 1,451) France (n = 3,243) Spain (n = 201) The United Kingdom (n = 864) Germany (n = 109) Italy (n = 224) Total (n = 6,092)
Age: Mean (STD) 55.43 (17.09) 62.71 (15.28) 24.08 (5.76) 46.97 (10.52) 40.08 (10.96) 69.80 (6.78) 57.33 (17.13)
Gender: Female % 57 56 70 57 58 43 56
Ethnic origin:        
    Asian: N(%) 2 (<1) 4 (<1) 0 (0) 10 (1) 2 (2) 0 (0) 18 (<1)
    Black: N(%) 2 (<1) 13 (<1) 2 (1) 6 (1) 0 (0) 0 (0) 23 (<1)
    Caucasian: N(%) 1,443 (99) 3,218 (99) 197 (98) 844 (98) 105 (96) 224 (100) 6,031 (99)
Previous vaccination:        
    Yes: N(%) 896 (62) 2,106 (65) 80 (40) 535 (62) 31 (28) 207 (92) 3,855 (63)
    Unknown: N(%) 18 (1) 35 (1) 5 (2) 8 (1) 5 (5) 0 (0) 71 (1)