Table 5.
Adverse pregnancy outcomes among infected pregnant travellers compared to non-infected pregnant travellers within a nested case-control study. The risk of severe adverse pregnancy outcomes associated with a recent maternal ZIKV infection among pregnant travellers was evaluated in a nested case control study comparing infected pregnant travellers, considered as cases, to non-infected pregnant travellers, taken as controls. Abbreviations: ZIKV, Zika virus.
| Travellers | |||||
|---|---|---|---|---|---|
| Positive Recent Maternal ZIKV Infection | Negative Recent Maternal ZIKV Infection | ||||
| n = 36 | n = 108 | ||||
| n (%) | 95% CI | n (%) | 95% CI | ||
| Foetal/Neonatal outcomes | |||||
| Asymptomatic | 33 (91.7) | 78.2–97.1 | 103 (95.4) | 89.6–98.0 | |
| Severe adverse pregnancy outcomes | 3 (8.3) | 2.9–21.8 | 4 (3.7) | 1.4–9.1 | |
| Foetal/neonatal testing | |||||
| Known | 23 (63.9) | 47.6–77.5 | 6 (5.6) | 2.6–11.6 | |
| Positive | 5 (21.7) | 9.7–41.0 | 0 (0.0) | n.a. | |
| Negative | 18 (78.3) | 58.1–90.3 | 6 (100.0) | 61.0–100.0 | |
| Unknown | 13 (36.1) | 22.5–52.4 | 102 (94.4) | 88.4–97.4 | |