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Table 2 Characteristics of the studies included in the meta-analysis

From: Risk of placenta previa in second birth after first birth cesarean section: a population-based study and meta-analysis

Study ID

Country

Study period

Study design

Population

Size

First two births

Risk adjustment*

Singh_1981

India

1973-1978

Cohort

Hospital

12040

0

-

Gorodeski_1985

Israel

1972-1983

Case-control

Hospital

455

0

-

Sauer_1985

USA

1981-1984

Case-control

Hospital

135

0

-

Clark_1985

USA

1977-1983

Cohort

Hospital

97799

0

-

Rose_1986

England

1978-1982

Case-control

Hospital

160

0

AP;

Hemminki_1987

Sweden

 

Cohort

Population

7337

1

AP;

Nielsen_1989

Sweden

1978-1987

Cohort

Hospital

24644

0

-

Williams_1991

USA

1977-1980

Case-control

Hospital

12420

0

AP; abortion; alcohol and tobacco use; SE

Chattopadhyay_1993

Saudi Arabia

1988-1992

Cohort

Hospital

41206

0

-

Zhang_1993

USA

1988-1990

Case-control

Population

6478

0

-

Parazzini_1994

Italy

1979-1991

Case-control

Hospital

203

0

-

Makhseed_1994

Kuwait

1992-1992

Cohort

Hospital

8721

0

-

Khouri_1994

Saudi Arabia

1985-1989

Cohort

Hospital

25551

0

-

Taylor_1994

USA

1984-1987

Case-control

Population

1967

0

AP; abortion; tobacco use

To_1995

Hong Kong

1984-1993

Cohort

Hospital

50485

0

-

Monica_1995

Sweden

1983-1990

Case-control

Population

4676

0

AP; previous previa

Hemminki_1996

Finland

1987-1993

Cohort

Population

10889

1

AP; provider

Chelmow_1996

USA

1992-1994

Case-control

Hospital

128

0

-

Takayama_1997

Japan

1974-1994

Case-control

Hospital

264

0

-

Macones_1997

USA

1992-1996

Case-control

Hospital

120

0

age; abortion; drug and tobacco use

Ziadeh_1999

Jordan

1995-1996

Cohort

Hospital

18651

0

-

Hendricks_1999

Singapore

1993-1997

Cohort

Hospital

16169

0

-

Rageth_1999

Switzerland

1983-1996

Cohort

Population

255453

0

-

Archibong_2001

Saudi Arabia

1997-2002

Cohort

Hospital

15191

0

-

Lydon-Rochelle_2001

USA

1987-1996

Cohort

Population

95630

1

AP

Eniola_2002

Nigeria

 

Case-control

Hospital

272

0

AP; abortion; SE

Gilliam_2002

USA

1986-1989

Case-control

Hospital

1171

1

AP; abortion; tobacco use

Tuzovic_2003

Croatia

1992-2001

Case-control

Hospital

1206

0

-

Hossain_2004

Bangladesh

2000-2002

Cohort

Hospital

2536

0

-

Olive_2005

Australia

1998-2002

Cohort

Hospital

375653

0

-

Getahun_2006

USA

1989-1997

Cohort

Population

156475

1

AP; abortion; alcohol and tobacco use; prenatal care; inter pregnancy interval; SE

Kennare_2007

Australia

1998-2003

Cohort

Population

36038

1

AP; abortion

Hung_2007

Taiwan

1990-2003

Cohort

Hospital

37702

0

-

Daltveit_2008

Norway

1967-2003

Cohort

Population

637497

1

AP; delivery date

Rahim_2009

Pakistan

2001-2005

Cohort

Hospital

20110

0

-

Yang_2009

USA

1995-2000

Cohort

Population

11026768

0

AP; abortion; alcohol, tobacco and drug use; prenatal care; SE

Rosenberg_2010

Israel

1988-2009

Cohort

Hospital

185476

0

AP; abortion; fertility treatment; tobacco use

  1. * AP: age and parity; SE: socioeconomic factors