Table A2.
Number (%) of respondents recording side effects following baseline influenza vaccination, by contact method
| Side effects | H1N1 only | Seasonal only | H1N1 and seasonal | H1N1/seasonal and other | P valuea | Overall | H1N1 total | Not H1N1 total | P valueb |
|---|---|---|---|---|---|---|---|---|---|
| Web | |||||||||
| N (NMISSING) | 395 (0) | 83 (0) | 185 (0) | 34 (0) | 697 (0) | 607 (0) | 90 (0) | ||
| Any side effects | 163 (41.3%) | 22 (26.5%) | 72 (38.9%) | 10 (29.4%) | 0.055 | 267 (38.3%) | 243 (40.0%) | 24 (26.7%) | 0.015 |
| Discomfort or pain | 257 (65.1%) | 29 (34.9%) | 125 (67.6%) | 18 (52.9%) | <0.001 | 429 (61.5%) | |||
| Any (including pain/discomfort)c | 291 (73.7%) | 43 (51.8%) | 140 (75.7%) | 19 (55.9%) | <0.001 | 493 (70.7%) | 448 (73.8%) | 45 (50.0%) | <0.001 |
| Telephone | |||||||||
| N (NMISSING) | 299 (0) | 52 (0) | 39 (0) | 16 (0) | 406 (0) | 353 (0) | 53 (0) | ||
| Any side effects | 151 (50.5%) | 13 (25.0%) | 22 (56.4%) | 10 (62.5%) | 0.002 | 196 (48.3%) | 182 (51.6%) | 14 (26.4%) | 0.001 |
| Discomfort or pain | 159 (53.2%) | 7 (13.5%) | 20 (51.3%) | 11 (68.8%) | <0.001 | 197 (48.5%) | |||
| Any (including pain/discomfort)c | 220 (73.6%) | 18 (34.6%) | 27 (69.2%) | 14 (87.5%) | <0.001 | 279 (68.7%) | 260 (73.7%) | 19 (35.8%) | <0.001 |
a
Notes: P value from Fisher’s exact test on the difference between the four vaccine groups;
b
P value from Fisher’s exact test on the difference between respondents receiving H1N1 vaccine and those receiving vaccines other than H1N1 (seasonal/seasonal + other);
c
any side effects defined from the side effect cascade plus reports of pain or discomfort.