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Table 1 Characteristics of studies on postpartum contraceptive use, by regions (n = 35)

From: A systematic review and meta-analysis of postpartum contraceptive use among women in low- and middle-income countries

First author [Reference]

Publication year

Survey year(s)

Country

Study Design

Study population

Outcomes included in the meta-analysis

New Castle Ottawa Scoreb

Maternal Age (years)a

Time point of assessment

Sample size

West Africa

 Adanikin [63]

2013

2011–2012

Nigeria

RCT

Mean = 29.2

6 months

216

mCPR

4

 Adeyemi [41]

2005

2003–2004

Nigeria

Prospective cohort

Mean = 28.5

9–10 months

256

mCPR, unmet need

4

 Eliason [6]

2013

2012

Ghana

Cross-sectional

Mean = 25.6

At the clinic

1914

–

4

 Sipsma [51]

2013

2006

Niger

Cross-sectional

Mean = 29

6 months

673

mCPR

4

 Robinson [37]

2016

2010

Ghana

Qualitative (FGD)

Range = 15–49

0–12 months

13

–

2

 Durosinlorun [62]

2016

2000–2014

Nigeria

Retrospective cohort

Range = < 20 to ≥50

6 months

5992

–

4

 Iliyasu [53]

2018

2015

Nigeria

Cross-sectional

Mean = 27

12 months

317

mCPR

4

 Morhe [54]

2017

2011

Ghana

Cross-sectional

Mean = 31.1

6–12 months

200

mCPR

5

East Africa

 Balkus [58]

2007

1999–2003

Kenya

Prospective cohort

Range = 18–42

12 months

410

mCPR

3

 Hubacher [42]

2013

2011–2012

Kenya

Prospective cohort

Range = 18–39

6–12 weeks

671

Birth spacing & limiting

3

 Mumah [35]

2015

2007–2010

Kenya

Prospective cohort

Range = 15–49

0–12 months

3579

mCPR, birth limiting

4

 Ndugwa [17]

2011

2007–2008

Kenya

Prospective cohort

Range = 11–52

0–12 months

2994

mCPR, birth limiting

3

 Abera [10]

2015

2013

Ethiopia

Cross-sectional

Mean = 27.2

6 weeks-12 months

703

mCPR, birth spacing & limiting

5

 Abraha [11]

2017

2015

Ethiopia

Cross-sectional

Mean = 27.4

0–12 months

590

mCPR, birth spacing & limiting

5

 O’Shea [36]

2014

2013

Malawi

Cross-sectional

Range = 18–35+

0–12 months

634

–

3

 Keogh [50]

2015

2008

Tanzania

Cross-sectional

Range = 15–35+

6–12 months

5284

mCPR, birth spacing & limiting

3

 Mengesha [43]

2015

2012

Ethiopia

Cross-sectional

Mean = 28.3

12 months

899

mCPR, birth spacing & limiting

5

 Shabiby [57]

2015

2012

Kenya

Cross-sectional

Mean = 26

At discharge after birth

185

–

3

 Sileo [44]

2015

2012

Uganda

Cross-sectional

Mean = 25.8

3 months

258

mCPR, unmet need

4

 MCHIP [39]

2012

2008–2009

Kenya

Cross-sectional (DHS data)

Range = 15–49

0–12 months

2264

Unmet need, birth spacing & limiting

3

 Achwoka [55]

2017

2013

Kenya

Cross-sectional

Mean = 25.8

8–10 months

955

mCPR

5

 Gebremariam [59]

2017

2015

Ethiopia

Cross-sectional

Mean = 30.8

6–12 months

605

mCPR

5

 Gebremedhin [60]

2018

2015

Ethiopia

Cross-sectional

Range = 15–49

12 months

803

mCPR

4

South Asia/South East Asia

 Chhabra [13]

2016

2014

India

Cross-sectional

Range = 15–40

8 weeks

117

mCPR

2

 Kashyap [14]

2016

2015

India

Cross-sectional

Range = 18–35

10 weeks

178

mCPR

2

 Mody [48]

2014

2008

India

Cross-sectional

Range = 17–45

6 months

1049

mCPR

3

 Withers [38]

2010

2002–2003

Indonesia

Cross-sectional

Mean = 29.9

0–12 months

1528

mCPR

5

 FP seminar [40]

2014

NA

India

Seminar report

NS

0–12 months

56 countries

–

2

 Navodani [56]

2017

2014

Sri Lanka

Cross-sectional

Mean = 29.4

8–12 weeks

1112

mCPR

5

 Wilopo [49]

2017

2015

Indonesia

Cross-sectional

Range = 15–49

6 months

1415

mCPR, unmet need

4

Middle East/North Africa

 Elweshahi [45]

2018

2016

Egypt

Cross-sectional

Mean = 30

12 months

1500

mCPR, unmet need

5

Multi-regional (South Asia/Sub-Saharan Africa/Central America)

 Moore [16]

2015

2005–2012

21 LMIC

Cross-sectional (DHS data)

Range = 15–49

0–12 months

21 countries

–

3

 Ross [9]

2001

1991–1996

27 countries

Cross-sectional (DHS data)

Range = 15–49

0–12 months

27 countries

–

3

 Pasha [8]

2015

2011–2012

India, Pakistan, Zambia, Kenya, Guatemala

Prospective cohort

Range = < 20 to ≥30

6 weeks

36,687

mCPR, unmet need, birth spacing & limiting

3

 Hounton [52]

2015

2004–2013

Ethiopia, Malawi, and Nigeria

Cross-sectional (DHS data)

Range = 15–49

3 months

3 countries

–

3

  1. Note: DHS (demographic and health survey), FGD (focus group discussion), MCHIP (maternal and child health integrated program), NA (not applicable), NS (not specified), PP (postpartum period),
  2. RCT (randomized controlled trial)
  3. a Age at enrollment
  4. b Total modified Newcastle-Ottawa risk of bias scores for the studies included in this systematic review and meta-analysis. Scoring were done based on the (i) sample representativeness; (ii) sample size; (iii) non-respondents, (iv) ascertainment of mCPR/reproductive intention/unmet need; and (v) quality of descriptive statistics reporting. Total scores range from 0 to 5. For the total score grouping, studies were judged to be of low risk of bias (≥3 points) or high risk of bias (< 3 points)