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Table 1 Maternal and newborn characteristics of 235 toddlers included in the analysis by ZIKV exposure status

From: In utero Zika virus exposure and neurodevelopment at 24 months in toddlers normocephalic at birth: a cohort study

 

In utero ZIKV exposure (N = 156)

ZIKV unexposed (N = 79)

P value

Maternal characteristics

 Age at time of pregnancy (years)

   

 Mean ± SD

30.7 ± 6.3

28.6 ± 6.0

0.01

 Interquartile range

26–36

25–33

 

 Occupation—n (%)

  

< 0.001

  - Student

5 (3.2)

3 (3.8)

 

  - Self-employed/business owner/farmer

11 (7.1)

2 (2.5)

 

  - Executive/highly skilled worker

22 (14.1)

10 (12.7)

 

  - Intermittent profession

10 (6.4)

24 (30.4)

 

  - Salaried employee

60 (38.5)

16 (20.2)

 

  - Not employed

47 (30.1)

24 (30.4)

 

  - Unknown or declined to respond

1 (0.6)

0 (0)

 

 Educational attainment of mother—n (%)

  

0.04

  - Primary

30 (19.2)

7 (8.9)

 

  - Secondary

47 (30.1)

31 (39.2)

 

  - Tertiary

66 (42.3)

39 (49.4)

 

  - Unknown or declined to respond

13 (8.3)

2 (2.5)

 

 Educational attainment of father—n (%)

  

0.04

  - Primary

22 (14.1)

4 (5.1)

 

  - Secondary

39 (25.0)

28 (35.4)

 

  - Tertiary

32 (20.5)

22 (27.8)

 

  - Unknown or declined to respond

62 (39.7)

25 (31.6)

 

 Residence—n (%)

  

< 0.001

  - Guadeloupe

88 (56.4)

12 (15.1)

 

  - Martinique

65 (41.7)

63 (79.7)

 

  - French Guiana

3 (1.9)

4 (5.1)

 

 Parity—n (%)

  

0.05

  0

64 (41.0)

41 (51.9)

 

  1

51 (32.7)

27 (34.2)

 

  2

25 (16.0)

3 (3.9)

 

  3+

16 (10.3)

8 (10.1)

 

 Previous adverse pregnancy outcomes—n (%)

  - Congenital abnormalities

0 (0)

0 (0)

  - Stillbirth*

6 (3.8)

0 (0)

0.18

  - Medical termination of pregnancy*

1 (0.6)

0 (0)

1

 Lifestyle practices during 2016–2017 pregnancy—n (%)

  - Alcohol consumption*

1 (0.6)

0 (0)

1

  - Drug use*

1 (0.6)

1 (1.4)

1

  - Smoking*

5 (3.2)

5 (6.8)

0.38

  - Use of mosquito repellents*

116 (75.3)

47 (61.0)

0.04

  - Use of larvicides*

91 (59.5)

44 (59.5)

1

Newborn characteristics

 Gestational age (weeks)

   

 Mean ± SD

39.1 ± 1.3

39.1 ± 1.5

0.84

 Delivery type—n (%)*

   

  Cesarean

29 (18.6)

8 (10.1)

0.13

   - Guadeloupe

17/88 (19.3)

2/12 (16.7)

1

   - Martinique

10/64 (15.6)

5/63 (7.9)

0.29

   - French Guiana

2/3 (66.7)

1/4 (25.0)

0.49**

 Sex—n (%)

  Male

70 (44.9)

40 (50.6)

0.49

 Birth weight (g)

  Mean

3176 ± 476

3196 ± 451

0.75

 Medical consultations since birth—n (%)*

  - Hospitalization > 1 day

33 (21.1)

17 (21.5)

1

  - Emergency room consultation

84 (54.5)

52 (65.8)

0.13

  - Osteopath consultation

28 (18.1)

13 (16.7)

0.93

  - Psychomotor therapist consultation

3 (2.0)

1 (1.3)

1

  - Psychologist consultation

1 (0.6)

0 (0)

1

  - Speech therapist consultation

5 (3.2)

0 (0)

0.26

  - Chest physiotherapist consultation

44 (28.2)

29 (35.4)

0.32

  - Physiotherapist consultation

6 (3.9)

2 (2.6)

0.89

  1. *Data are missing for stillbirth = 1; medical termination of pregnancy = 1; alcohol consumption = 6; drug use = 6; smoking = 6; mosquito repellent use = 4; larvicide use = 8; delivery type = 1; emergency room consultation = 2; osteopath consultation = 2; psychomotor consultation = 3; psychologist consultation = 1; speech therapist consultation = 2; physiotherapist consultation = 2
  2. **Fisher’s exact test