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Table 2 Characteristics of the included primary studies

From: The effectiveness of antenatal care programmes to reduce infant mortality and preterm birth in socially disadvantaged and vulnerable women in high-income countries: a systematic review

 

Number (%) of studies

Year of publication

 

1990-1994

8 (22)

1995-1999

9 (25)

2000-2004

15 (42)

2005-2008 (part year)

4 (11)

Country

 

USA

26 (72)

Australia

4 (11)

U.K.

4 (11)

Canada

1 (3)

Greece

1 (3)

Study design

 

RCT-individually randomized

7 (19)

RCT-cluster randomized

2 (6)

Retrospective cohort study

12 (33)

Prospective cohort study

6 (17)

Cohort study (unspecified)

2 (6)

Mixed retrospective/prospective cohort study

1 (3)

Before and after study

6 (17)

Outcomes reported*

 

PTB/preterm labour

32 (89)

Infant mortality

5 (14)

Neonatal mortality

6 (17)

Congenital anomalies

6 (17)

  1. * Not mutually exclusive