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Table 1 Prevalence of pregnancy by assisted reproductive technology (ART) according to maternal characteristics. The 2015 Pelotas (Brazil) Birth Cohort Study

From: Maternal and child-health outcomes in pregnancies following Assisted Reproductive Technology (ART): a prospective cohort study

 

2015 Birth Cohort

ART

pa

N

n

%

Family income

   

< 0.001

 1–3

2525

4

0.2

 

 3.1–10

1430

5

0.3

 

 > 10

262

9

3.4

 

Age (years)

   

< 0.001

 < 30

2613

2

0.1

 

 30–35

1130

8

0.7

 

 36–39

350

5

1.4

 

 ≥ 40

125

3

2.4

 

Parity

   

0.001

 1 (primiparae)

2084

16

0.8

 

 ≥ 2

2133

2

0.1

 

Schooling (years)

   

< 0.001

 0–8

1471

1

0.1

 

 9–11

1441

1

0.1

 

 12+

1305

16

1.2

 

Pre-pregnancy BMI ≥ 25 (kg/m2)

2000

8

0.7

0.60

Total

4219

18

0.4

 
  1. aFisher’s exact test; ART assisted reproductive technology, BMI body mass index
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