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Table 1 Derivation of Study Populationa

From: The relationship between birth intervals and adverse maternal and neonatal outcomes in six low and lower-middle income countries

 

Total

DRC

Zambia

Kenya

Guatemala

Belagavi

Nagpur

Pakistan

Screened

314,313

32,449

36,276

40,545

57,247

51,226

47,857

48,713

Ineligible

655

0

0

0

11

0

0

644

Did not consent

773

0

0

3

757

12

0

1

Parity unknown

2686

2

8

111

2

3

30

2530

Parity = 0

97,001

6118

11,127

13,165

16,884

18,390

23,513

7804

Lost to follow-up prior to delivery

1979

415

109

398

292

3

60

702

Last delivery date missing or unknown

18,146

606

2061

1592

4370

2774

2533

4210

Miscarriage/MTP on index pregnancy

10,558

215

101

104

365

5084

1514

3175

Extreme Outlier IDIb

733

36

95

54

134

165

59

190

Deliveries Included

181,782

25,057

22,775

25,118

34,432

24,795

20,148

29,457

  1. aIncludes deliveries and expected deliveries from November 2013 to December 2018
  2. bIDI’s < 6 months or > 180 months (15 years) were excluded from this analysis due to validity concerns