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Table 1 Comparison of sample’s characteristics of G-GrippeNet 2014/2015 with national statistics from the 2010 National Perinatal Survey

From: First nationwide web-based surveillance system for influenza-like illness in pregnant women: participation and representativeness of the French G-GrippeNet cohort

 

GGNET N (%)

National perinatal survey 2010 N (%)

p-value

Total

153

15 187

 

Age, years

  

<10 −3

  < 25

1 (1 %)

2444 (17 %)

 

 25–29

29 (19 %)

4777 (33 %)

 

 30–34

59 (39 %)

4419 (31 %)

 

 35–39

51 (34 %)

2255 (16 %)

 

  > 39

12 (8 %)

506 (3 %)

 

Educational Level

  

<10 −3

 Middle School or less

3 (2 %)

3974 (28 %)

 

 High School

13 (9 %)

2796 (20 %)

 

 College or more

135 (89 %)

7290 (52 %)

 

Occupational status

  

<10 −3

 Employed

111 (74 %)

9507 (67 %)

 

 Housewife

5 (2 %)

1869 (13 %)

 

 Student

1 (1 %)

344 (2 %)

 

 Unemployed

14 (9 %)

1711 (12 %)

 

 Other

21 (14 %)

718 (5 %)

 

Occupation (if employed)

  

<10 −3

 Professional, manager, intermediate

36 (31 %)

4175 (43 %)

 

 Office work

64 (55 %)

2714 (29 %)

 

 Services

5 (4 %)

1713 (18 %)

 

 Skilled manual work

6 (5 %)

453 (5 %)

 

 Other manual work

0

339 (4 %)

 

 Other

6 (5 %)

88 (1 %)

 

Pregnancy trimester

  

-

 1st

40 (27 %)

-

 

 2nd

47 (32 %)

-

 

 3rd

61 (41 %)

-

 

Parity

  

0.45

 0

73 (48 %)

6396 (43 %)

 

 1

53 (35 %)

5004 (35 %)

 

 2

20 (13 %)

2069 (14 %)

 

  > 2

7 (4 %)

1130 (8 %)

 

History of hospitalisation during previous pregnancy

  

-

 No

82 (78 %)

-

 

 Yes

23 (22 %)

-

 

Chronic disease

   

 No

142 (93 %)

-

-

 Yes

11 (7 %)

-

 

  Asthma

7

-

 

  Chronic respiratory disease

2

-

 

  Chronic cardiac disease

1

-

 

  Chronic renal disease

1

-

 

  Diabetes

0

-

 

  Immunosuppression

1

-

 

Body Mass Index before pregnancy

  

0.25

  < 18.5

11 (7 %)

1126 (8 %)

 

 18.5–25

106 (70 %)

8811 (65 %)

 

 25–30

26 (17 %)

2360 (17 %)

 

  > 30

8 (6 %)

1347 (10 %)

 

Current smoker

  

0.002

 No

142 (93 %)

11,679 (83 %)

 

 Yes (1)

11 (7 %)

2403 (17 %)

 
  1. (1) at enrollment in GGNET; during the 3rd trimester in the National Perinatal Survey