Table 2.
Outcome measures by intervention group. Comparison of log-transformed HI titres at baseline and one month, 4-fold conversion and seroprotection rates for antibodies, IL-6 levels, and vaccine reaction and influenza-like symptom reporting for exercise and control groups. Values are expressed as means ± standard deviation or as percentages (n); p values are for chi-square or t tests.
| Outcomes | Exercise (n = 23) | Control (n = 23) | p value | |
|---|---|---|---|---|
| A/California/7/2009 | Baseline | 0.74 ± 0.642 | 0.80 ± 0.730 | .774 |
| 1 month | 1.58 ± 0.647 | 1.81 ± 0.0653 | .244 | |
| 4-fold at 1 month | 34.8% (8) | 28.6% (6) | .659 | |
| seroprotection at 1 month | 60.9% (14) | 71.4% (15) | .460 | |
| A/Perth/16/2009 | Baseline | 0.94 ± 0.815 | 1.21 ± 0.717 | .258 |
| 1 month | 1.91 ± 0.556 | 2.10 ± 0.460 | .222 | |
| 4-fold at 1 month | 52.2% (12) | 59.1% (13) | .641 | |
| seroprotection at 1 month | 95.5% (21) | 91.3% (21) | .577 | |
| B/Brisbane/60/2008 | Baseline | 1.23 ± 0.501 | 1.17 ± 0.619 | .752 |
| 1 month | 1.70 ± 0.484 | 1.83 ± 0.500 | .372 | |
| 4-fold at 1 month | 4.3% (1) | 18.2% (4) | .140 | |
| seroprotection at 1 month | 87.0% (20) | 72.7% (19) | .233 | |
| IL-6 (pg/mL) | Baseline | 1.40 ± 0.652 | 1.53 ± 0.659 | .513 |
| 30 min post vaccination | 1.92 ± 1.238 | 1.35 ± 0.711 | .020 | |
| Vaccine reaction | 0% (0) | 17.4% (4) | .036 | |
| Symptom frequency | 28.1 ± 21.23% | 18.8 ± 20.16% | .142 | |