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Table 1 HPV vaccination initiation according to background characteristics

From: Dynamics of HPV vaccination initiation in Flanders (Belgium) 2007-2009: a Cox regression model

   Vaccination initiation
N (%)
No vaccination initiation
N (%)
P (chi square)
     <0.0001
Year of birth 1989 3,081 (20.2) 12,202 (79.8)  
  1990 8,400 (53.4) 7,342 (46.6)  
  1991 8,270 (53.7) 7,118 (46.3)  
  1992 12,227 (81.9) 2,702 (18.1)  
  1993 10,758 (74.9) 3,615 (25.2)  
  1994 8,959 (65.2) 4,783 (34.8)  
  1995 6,690 (47.9) 7,278 (52.1)  
  1996 3,166 (23.1) 10,560 (76.9)  
Preferential treatment     <0.0001
  Yes 1,816 (33.0) 3,692 (67.0)  
  No 59,735 (53.5) 51,908 (46.5)  
Province     <0.0001
  Antwerp 16,369 (53.0) 14,537 (47.0)  
  Limburg 8,669 (57.2) 6,488 (42.8)  
  East-Flanders 13,466 (50.5) 13,210 (49.5)  
  West-Flanders 12,995 (49.0) 13,520 (51.0)  
  Flemish Brabant 10,052 (56.2) 7,845 (43.8)  
Median income neighborhoodA     <0.0001
  Quintile1 7,103 (43.0) 9,404 (57.0)  
  Quintile2 11,301 (50.6) 11,019 (49.4)  
  Quintile3 12,411 (53.3) 10,868 (46.7)  
  Quintile4 14,240 (55.1) 11,598 (44.9)  
  Quintile5 16,496 (56.5) 12,711 (43.5)  
  1. A The quintiles are calculated for the whole of Flanders: each quintile encompasses 20% of all tax declarations in Flanders.