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Table 4 Influenza vaccine coverage in Portugal for the 1998/99 to 2010/11 seasons, by sex and age

From: Trends in influenza vaccination coverage in Portugal from 1998 to 2010: effect of major pandemic threats

  1998/99 1999/00 2001/02 2002/03 2003/04 2004/05 2005/06 2006/07 2007/08 2008/09 2009/10 2010/11
Sex (%) n = 1429 n = 1844 n = 1983 n = 1295 n = 1238 n = 1170 n = 1045 n = 1248 n = 1186 n = 1035 n = 1355 n = 1310
Male 13.9 15.5 16.9 15.0 16.6 14.8 19.2 13.0 14.9 16.7 19.1 15.9
  (11.9; 16.3)* (13.6; 17.6) (15.0; 19.0) (12.7; 17.5) (14.3; 19.3) (12.8; 17.1) (16.7; 21.9) (11.1; 15.1) (12.9; 17.2) (14.5; 19.3) (16.4; 22.1) (13.1; 19.2)
  n = 1424 n = 1952 n = 2165 n = 1420 n = 1360 n = 1295 n = 1161 n = 1382 n = 1351 n = 1157 n = 1454 n = 1374
Female 14.4 15.7 17.1 14.9 20.1 15.9 18.9 15.5 16.9 19.7 20.0 19.1
  (12.3; 16.7) (13.9; 17.8) (15.3; 19.1) (12.8; 17.3) (17.7; 22.8) (13.9; 18.1) (16.7; 21.4) (13.6; 17.7) (14.9; 19.1) (17.3; 22.2) (17.2; 23.0) (16.1; 22.5)
p 0.794 0.870 0.892 0.973 0.058 0.472 0.899 0.076 0.207 0.093 0.664 0.056
Age group (%) n = 390 n = 449 n = 481 n = 294 n = 290 n = 275 n = 214 n = 398 n = 352 n = 309 n = 457 n = 419
<15 12.1 14.6 10.2 5.7 8.2 6.1 11.3 4.4 3.9 5.5 12.9 9.6
  (8.7; 16.6) (10.9; 19.1) (7.3; 14.0) (3.4; 9.4) (5.2; 12.8) (3.8; 9.7) (7.4; 16.7) (2.7; 7.0) (15.3; 21.9) (3.5; 8.8) (9.3; 17.6) (5.6; 16.3)
  n = 1266 n = 1570 n = 1617 n = 960 n = 936 n = 835 n = 704 n = 982 n = 944 n = 772 n = 1184 n = 1090
15-44 9.9 8.1 9.5 6.6 7.6 4.3 7.7 6.1 7.8 8.3 10.3 7.4
  (8.0; 12.1) (6.6; 9.8) (7.9; 11.4) (4.9; 8.8) (5.8; 9.8) (3.1; 5.9) (5.9; 10.2) (4.7; 7.9) (6.1; 9.8) (6.5; 10.6) (8.1; 12.9) (5.1; 10.5)
  n = 818 n = 1066 n = 1244 n = 780 n = 810 n = 754 n = 707 n = 738 n = 776 n = 708 n = 800 n = 777
45 - 64 13.5 12.5 15.0 14.2 16.7 14.3 18.1 14.7 13.8 17.1 15.5 17.0
  (10.9; 16.6) (10.3; 15.1) (12.8; 17.5) (11.4; 17.5) (13.8; 20.0) (11.8; 17.2) (15.2; 21.4) (12.2; 17.6) (11.4; 16.6) (14.3; 20.3) (12.4; 19.1) (13.5;21.2)
  n = 433 n = 616 n = 716 n = 523 n = 561 n = 601 n = 514 n = 355 n = 431 n = 396 n = 368 n = 398
≥65 31.3 39.0 41.9 36.9 46.9 39.0 41.6 50.4 51.0 53.3 52.2 48.3
  (26.1; 36.9) (34.3; 43.8) (37.6; 46.3) (31.9; 42.3) (41.9; 52.1) (34.9; 43.3) (37.1; 46.3) (44.8; 55.9) (45.8; 56.1) (47.9; 58.6) (45.6; 58.7) (40.9; 55.7)
p <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001 <0.001
  1. Notes: *95% confidence Interval; p-value; n sample size.