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Table 2 Stratified and pooled analysis of studies included in meta-analysis of delayed antenatal care and pregnancy intention based on study design and type of country, 1980-2012

From: The effects of pregnancy intention on the use of antenatal care services: systematic review and meta-analysis

Stratifying variable

Sample size

Random effects

Fixed effects

Heterogeneity

P

Study Design

     

Cross-sectional

121,035

1.43(1.26-1.61)

1.37(1.33-1.41)

281.2

0.001

Prospective cohort

6944

1.36(1.17-1.59)

1.36(1.17-1.59)

5.93

0.762

Type of country

     

Developed

65,743

1.50(1.34-1.68)

1.64(1.57-1.71)

49.7

0.001

Developing

62,446

1.36(1.13-1.65)

1.26(1.20-1.33)

97.8

0.001

Pooled estimate

128,199

1.42(1.27-1.59)

1.37(1.33-1.41)

286.2

0.001