Table 6.
Effect of maternal inactivated influenza vaccine on 6-month-old infant weight-for-age, weight-for-length, and length-for-age
|
Intervention |
Control |
Risk ratio (95% CI) | p value | |||
|---|---|---|---|---|---|---|
| Infants, n | Incidence, per 1000 infants | Infants, n | Incidence, per 1000 infants | |||
| Underweight | ||||||
| Nepal | 233 | 182·6 | 228 | 182·4 | 1·00 (0·85–1·18) | 0·99 |
| Mali | 124 | 80·7 | 137 | 90·3 | 0·89 (0·71–1·13) | 0·34 |
| South Africa | 49 | 66·8 | 40 | 54·6 | 1·22 (0·82–1·83) | 0·33 |
| Pooled | 406 | 114·5 | 405 | 115·7 | 0·99 (0·87–1·12) | 0·83 |
| Severely underweight | ||||||
| Nepal | 55 | 43·1 | 69 | 55·2 | 0·78 (0·55–1·10) | 0·16 |
| Mali | 26 | 16·9 | 25 | 16·5 | 1·03 (0·60–1·77) | 0·92 |
| South Africa | 11 | 15·0 | 9 | 12·3 | 1·22 (0·51–2·93) | 0·66 |
| Pooled | 92 | 26·0 | 103 | 29·4 | 0·88 (0·66–1·16) | 0·35 |
| Wasting | ||||||
| Nepal | 140 | 109·7 | 129 | 103·2 | 1·06 (0·85–1·33) | 0·60 |
| Mali | 167 | 108·7 | 172 | 113·4 | 0·96 (0·78–1·17) | 0·68 |
| South Africa | 58 | 79·1 | 50 | 68·3 | 1·16 (0·80–1·67) | 0·43 |
| Pooled | 365 | 103·0 | 351 | 100·3 | 1·02 (0·89–1·18) | 0·72 |
| Severe wasting | ||||||
| Nepal | 33 | 25·9 | 47 | 37·6 | 0·69 (0·44–1·07) | 0·09 |
| Mali | 48 | 31·2 | 45 | 29·7 | 1·05 (0·70–1·57) | 0·80 |
| South Africa | 21 | 28·6 | 18 | 24·6 | 1·16 (0·62–2·17) | 0·63 |
| Pooled | 102 | 28·8 | 110 | 31·4 | 0·91 (0·70–1·19) | 0·51 |
| Stunting | ||||||
| Nepal | 174 | 136·4 | 185 | 148·0 | 0·92 (0·76–1·12) | 0·40 |
| Mali | 99 | 64·4 | 77 | 50·8 | 1·27 (0·95–1·70) | 0·11 |
| South Africa | 170 | 23·2 | 206 | 28·1 | 0·82 (0·69–0·98) | 0·03 |
| Pooled | 443 | 125·0 | 468 | 133·8 | 0·93 (0·83–1·05) | 0·26 |
| Severe stunting | ||||||
| Nepal | 26 | 20·4 | 40 | 32·0 | 0·64 (0·39–1·04) | 0·07 |
| Mali | 20 | 13·0 | 16 | 10·5 | 1·23 (0·64–2·37) | 0·53 |
| South Africa | 70 | 95·5 | 78 | 106·6 | 0·90 (0·66–1·22) | 0·48 |
| Pooled | 116 | 32·7 | 134 | 38·3 | 0·86 (0·68–1·10) | 0·22 |