Table 2 Effect of maternal age, BMI and gestational weight gain on the association of maternal polycystic ovary syndrome with offspring outcomes

From: Systematic review and meta-analysis of birth outcomes in women with polycystic ovary syndrome

Outcomes

Age (year)

BMI (kg/m2)

Gestational weight gain (kg)

 

N

Effect size

Tau2

N

Effect size

Tau2

N

Effect size

Tau2

Preterm birth

  MD [95%CI]

32

−0.49 [−0.85, −0.13]

28

1.71 [1.23, 2.20]

11

0.86 [−0.14, 1.86]

 Univariate coefficient (95% CI)

33

0.16 [−0.02, 0.34]

0.13

28

0.11 [−0.02, 0.24]

0.14

11

0.11 [−0.17, 0.39]

0.10

Birthweight (g)

  MD [95%CI]

33

−0.45 [−0.84, −0.054]

30

1.52 [0.87, 2.16]

12

1.32 [0.16, 2.47]

 Univariate coefficient (95% CI)

33

−0.01 [−0.21, 0.19]

0.03

30

0.04 [−0.09, 0.17]

0.03

12

−0.09 [−0.20, 0.03]

0.11

Low birth weight

  MD [95%CI]

11

−0.40 [−1.01, 0.22]

9

1.32 [0.73, 1.91]

3

−0.55 [−1.90, 0.80]

 Univariate coefficient (95% CI)

11

0.24 [−0.11, 0.59]

0.14

 

Insufficient number

3

Insufficient number

Small for gestational age

  MD [95%CI]

15

−0.47 [−1.06, 0.13]

10

1.95 [0.14, 3.75]

6

0.50 [−0.86, 1.87]

 Univariate coefficient (95% CI)

15

0.05 [−0.23, 0.34]

0.03

10

−0.02 [−0.25, 0.21]

0.17

6

Insufficient number

Macrosomia

  MD [95%CI]

19

−0.25 [−0.69, 0.188]

15

1.78 [1.17, 2.40]

 

6

0.61 [−0.63, 1.85]

 Univariate coefficient (95% CI)

19

−0.05 [−0.25, 0.15]

0.07

15

−0.03 [−0.22, 0.15]

0.07

6

Insufficient number

  1. BMI body mass index, MD mean difference.