Table 1 Number and proportion of confirmed pertussis cases by age group from 2001 to 2015, São Paulo State, Brazil
Year | < 1 year | Percent | 1 to < 5 years | Percent | 5 to < 10 years | Percent | 10 to < 20 years | Percent | ≥20 years | Percent | Total | Percent |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
2001 | 73 | (81.11) | 6 | (6.67) | 3 | (3.33) | 4 | (4.44) | 4 | (4.44) | 90 | (100) |
2002 | 46 | (83.64) | 3 | (5.45) | – | – | 2 | (3.64) | 4 | (7.27) | 55 | (100) |
2003 | 77 | (89.53) | 4 | (4.65) | 1 | (1.16) | 2 | (2.33) | 2 | (2.33) | 86 | (100) |
2004 | 99 | (86.09) | 7 | (6.09) | 2 | (1.74) | 2 | (1.74) | 5 | (4.35) | 115 | (100) |
2005 | 116 | (68.24) | 6 | (3.53) | 8 | (4.71) | 17 | (10.00) | 23 | (13.53) | 170 | (100) |
2006 | 72 | (75.00) | 8 | (8.33) | 2 | (2.08) | 6 | (6.25) | 8 | (8.33) | 96 | (100) |
2007 | 518 | (80.31) | 38 | (5.89) | 13 | (2.02) | 23 | (3.57) | 53 | (8.22) | 645 | (100) |
2008 | 214 | (80.15) | 22 | (8.24) | 4 | (1.50) | 10 | (3.75) | 17 | (6.37) | 267 | (100) |
2009 | 107 | (74.31) | 12 | (8.33) | 2 | (1.39) | 6 | (4.17) | 17 | (11.81) | 144 | (100) |
2010 | 156 | (85.71) | 7 | (3.85) | 4 | (2.20) | 2 | (1.10) | 13 | (7.14) | 182 | (100) |
2011 | 718 | (78.38) | 67 | (7.31) | 21 | (2.29) | 35 | (3.82) | 75 | (8.19) | 916 | (100) |
2012 | 755 | (72.53) | 135 | (12.97) | 27 | (2.59) | 44 | (4.23) | 80 | (7.68) | 1041 | (100) |
2013 | 1079 | (66.89) | 231 | (14.32) | 90 | (5.58) | 68 | (4.22) | 145 | (8.99) | 1613 | (100) |
2014 | 1359 | (62.95) | 282 | (13.06) | 163 | (7.55) | 98 | (4.54) | 257 | (11.90) | 2159 | (100) |
2015 | 339 | (61.41) | 77 | (13.95) | 51 | (9.24) | 29 | (5.25) | 56 | (10.14) | 552 | (100) |
χ2 | 148.24 | 68.20 | 63.05 | 0.31 | 14.22 | |||||||
p | < 0.01 | < 0.01 | < 0.01 | 0.57 | < 0.01 |