Volume 16, Number 3—March 2010
Research
Chikungunya Virus Infection during Pregnancy, Réunion, France, 2006
Xavier Fritel
, Olivier Rollot, Patrick Gérardin, Bernard-Alex Gaüzère, Jacques Bideault, Louis Lagarde, Barbara Dhuime, Eric Orvain, Fabrice Cuillier, Duksha Ramful, Sylvain Sampériz, Marie-Christine Jaffar-Bandjee, Alain Michault, Liliane Cotte, Monique Kaminski, Alain Fourmaintraux, and the Chikungunya-Mère-Enfant Team
, Olivier Rollot, Patrick Gérardin, Bernard-Alex Gaüzère, Jacques Bideault, Louis Lagarde, Barbara Dhuime, Eric Orvain, Fabrice Cuillier, Duksha Ramful, Sylvain Sampériz, Marie-Christine Jaffar-Bandjee, Alain Michault, Liliane Cotte, Monique Kaminski, Alain Fourmaintraux, and the Chikungunya-Mère-Enfant TeamTable 2
Characteristics of women infected and not infected with chikungunya virus during pregnancy, Réunion, France, 2006*
| Characteristic | Infected, no. (%), n = 658 | Not infected, no. (%), n = 655 | p value† |
|---|---|---|---|
| Born in Réunion | |||
| Yes | 545 (84.1) | 510 (79.2) | |
| No |
103 (15.9) |
134 (20.8) |
0.02 |
| Education | |||
| Primary school | 331 (52.2) | 214 (34.3 | <0.0001 |
| High school | 198 (31.2) | 200 (32.1) | |
| University |
105 (16.6) |
209 (33.6) |
|
| Marital status | |||
| Lives alone | 252 (39.0) | 207 (32.0) | 0.008 |
| Lives with partner |
394 (61.0) |
440 (68.0) |
|
| History of diabetes | |||
| Yes | 17 (2.6) | 14 (2.1) | |
| No |
641 (97.4) |
641 (97.9) |
0.59 |
| History of hypertension | |||
| Yes | 23 (3.5) | 27 (4.1) | |
| No |
635 (96.5) |
627 (95.9) |
0.55 |
| Previous pregnancies <22 wks | |||
| Yes (>1) | 273 (41.6) | 258 (39.5) | |
| No |
384 (58.4) |
395 (60.5) |
0.45 |
| Mean parity | 1.4 (1.6) | 1.1 (1.4) | <0.0001 |
| 0 | 216 (32.9) | 278 (42.7) | 0.0004 |
| 1 | 199 (30.3) | 181 (27.8) | |
| 2 | 110 (16.8) | 106 (16.3) | |
| >3 |
131 (20.0) |
86 (3.2) |
|
| Previous stillbirth or neonatal death | |||
| Yes | 22 (3.3) | 12 (1.8) | |
| No |
636 (96.7) |
643 (98.2) |
0.08 |
| Previous preterm delivery | |||
| Yes | 44 (6.7) | 27 (4.1) | |
| No |
614 (93.3) |
626 (95.9) |
0.04 |
| Previous child >2,500 g | |||
| Yes | 70 (10.7) | 55 (8.4) | |
| No |
587 (89.3) |
598 (91.6) |
0.17 |
| Previous cesarean | |||
| Yes | 71 (10.8) | 66 (10.1) | |
| No |
587 (89.2) |
586 (89.9) |
0.69 |
| Mean age at delivery, y | 28.6 (6.9) | 28.8 (6.4) | 0.52 |
| <20 | 71 (10.8) | 69 (10.5) | 0.94 |
| 20–29 | 309 (47.0) | 303 (46.3) | |
| >30 |
278 (42.2) |
283 (43.2) |
|
| Mean body mass index, kg/m2 | 24.7 (5.9) | 23.4 (5.1) | <0.0001 |
| <25 | 390 (60.8) | 454 (71.5) | <0.0001 |
| 25–29 | 137 (21.3) | 113 (17.8) | |
| >30 |
115 (17.9) |
68 (10.7) |
|
| Center | |||
| 1 | 165 (25.1) | 188 (28.7) | <0.0001 |
| 2 | 196 (29.8) | 153 (23.4) | |
| 3 | 62 (9.4) | 71 (10.8) | |
| 4 | 21 (3.2) | 9 (1.4) | |
| 5 | 118 (17.9) | 182 (27.8) | |
| 6 | 96 (14.6) | 52 (7.9) |
*Women infected before pregnancy were considered not infected during pregnancy.
†By Wilcoxon rank-sum test for continuous variables and χ2 test for nominal variables.
