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Table 2 Summary statistics of maternal care outcomes and potential mediators at the baseline and endline and by intervention and comparison group

From: Understanding causal pathways within health systems policy evaluation through mediation analysis: an application to payment for performance (P4P) in Tanzania

 

Baseline

Endline

 

Intervention

Control

Total

Difference intervention control

Intervention

Control

Total

Difference intervention control

 

N

Mean (SE)

N

Mean (SE)

N

Mean (SE)

T test (P value)

N

Mean (SE)

N

Mean (SE)

N

Mean (SE)

T Test (P value)

Outcome

Facility-based delivery

1389

84.7

(36.0)

1485

86.8

(33.9)

2874

85.8

(34.9)

−2.1

(0.113)

1449

89.2

(31.0)

1462

83.1

(37.5)

2911

86.2

(34.5)

6.1

(0.000)

Public facility delivery

1389

76.7

(42.3)

1485

77.8

(41.6)

2874

77.3

(41.9)

−1.0

1449

81.6

(38.8)

1462

77.1

(42.0)

2911

79.3

(40.5)

4.5

(0.003)

Taken at least 2 doses of anti-malaria drug during pregnancy

1038

49.5

(50.0)

1212

56.7

(49.6)

2250

53.4

(49.9)

−7.2

(0.001)

1279

72.9

(44.4)

1252

69.2

(46.2)

2531

71.1

(45.3)

3.8

(0.036)

Potential mediators

Health workers received supervision visit in the last 90 days (%)

1315

88.7

(31.6)

1489

90.8

(28.9)

2804

89.8

(30.2)

−2.1

(0.073)

1165

98.5

(12.3)

1172

84.7

(36.0)

2337

91.6

(27.8)

13.7

(0.000)

Health facility with a governing committee (%)

1202

74.3

(23.0)

1384

70.5

(45.6)

2586

72.2

(44.8)

3.8

(0.029)

1119

80.6

(39.5)

1442

74.7

(43.5)

2891

77.7

(41.7)

5.9

(0.000)

Governing committee met in the past 90 days (%)

1345

94.4

(23.0)

1444

93.0

(25.5)

2789

93.7

(24.3)

1.4

(0.124)

1395

63.4

(48.2)

1442

44.5

(49.7)

2837

53.8

(49.9)

19.0

(0.000)

Minutes of health facilities governing committee meetings available (%)

1249

92.7

(26.0)

1300

80.5

(39.7)

2549

86.5

(34.2)

12.3

(0.000)

1193

90.1

(29.9)

1077

92.9

(25.6)

2270

91.5

(28.0)

−2.8

(0.016)

Health worker satisfied with relationship with local leaders (%)

1374

63.2

(48.3)

1489

58.2

(49.3)

2863

60.6

(48.9)

4.9

(0.000)

1430

63.1

(48.3)

1462

57.1

(49.5)

2892

60.1

(49.0)

6.0

(0.001)

Drug stock-out index-general (0–1 index) (%)

1323

54.6

(23.3)

1468

45.7

(27.8)

2791

49.9

(26.2)

8.9

(0.000)

1449

37.6

(25.3)

1462

45.7

(29.7)

2911

41.7

(27.8)

−8.0

(0.000)

Drugs at delivery-stock-out index (0–1 index) (%)

1323

54.3

(31.1)

1448

38.6

(34.4)

2771

46.1

(33.8)

15.7

(0.000)

1449

36.7

(32.6)

1462

48.8

(37.9)

2911

42.8

(35.9)

−12.1

(0.000)

Oxytocin injection stock-out last 90 days (%)

1302

42.0

(49.4)

1448

17.3

(37.9)

2750

29.0

(45.4)

24.7

(0.000)

1449

22.3

(41.6)

1462

33.7

(47.3)

2911

28.0

(44.9)

−11.4

(0.000)

Ergometrin injection stock-out last 90 days (%)

1286

65.4

(47.6)

1408

51.3

(50.0)

2694

58.1

(49.4)

14

(0.000)

1449

42.9

(49.5)

1462

57.1

(49.5)

2911

50.1

(50.0)

−14.2

(0.000)

Misoprostol tablet stock-out last 90 days (%)

1302

58.8

(49.2)

1428

49.1

(50.0)

2730

53.7

(49.9)

9.7

(0.000)

1449

44.8

(49.7)

1462

55.7

(49.7)

2911

50.3

(50.0)

−10.9

(0.000)

Medical supplies stock-out index (0–1 index) (%)

1180

39.3

(25.3)

1227

25.6

(23.2)

2407

32.3

(25.2)

13.8

(0.000)

1449

20.0

(19.1)

1462

21.3

(18.4)

2911

20.6

(18.8)

−1.3

(0.060)

Index of stock out of IPTp last 90 days (%)

1302

27.3

(44.6)

1486

19.5

(39.5)

2770

23.1

(42.1)

7.9

(0.000)

1449

6.8

(25.1)

1462

10.9

(31.2)

2911

8.9

(28.4)

−4.2

(0.000)

Service delivery disrupted due to broken equipment last 90 days (%)

1323

24.8

(43.2)

1468

12.5

(33.0)

2791

18.3

(38.7)

12.3

(0.000)

1392

5.2

(22.2)

1462

6.4

(24.4)

2854

5.8

(23.3)

−1.2

(0.174)

Intrinsic motivation score

1374

−7.7

(95.7)

1489

7.7

(74.1)

2863

0.3

(85.4)

−15.4

(0.000)

1429

−7.2

(93.2)

1462

8.05

(73.7)

2891

0.5

(84.3)

−15.3

(0.000)

Extrinsic motivation score

1374

−13.7

(68.2)

1489

1.1

(82.0)

2863

−6.0

(76.1)

−14.8

(0.000)

1430

−12.0

(68.5)

1462

0.5

(80.4)

2892

−5.7

(75.0)

−12.6

(0.000)

Health worker knowledge (%) a

1299

47.0

(27.4)

1467

67.7

(23.2)

2766

57.9

(27.0)

−20.0

(0.000)

1388

57.7

(9.8)

1347

59.6

(8.7)

2735

58.6

(9.3)

−19

(0.000)

Kindness at delivery (%) a,b

1389

74.8

(10.9)

1485

79.0

(10.1)

2874

77.0

(10.7)

−4.2

(0.000)

1449

88.9

(9.1)

1452

83.7

(11.7)

2911

83.8

(10.5)

0.21

(0.590)

Outreach visits conducted by health facility staff in the last 90 days (%)

1358

60.6

(48.9)

1424

58.5

(49.3)

2782

59.5

(49.1)

2.1

(0.258)

1449

73.5

(44.1)

1462

60.0

(49.0)

2911

66.7

(47.1)

13.4

(0.000)

Frequency of outreach visits performed by staff in last 90 days

1358

2.0

(2.8)

1424

2.0

(2.2)

2782

2.1

(2.5)

−0.0

(0.843)

1449

2.5

(3.27)

1462

2.03

(3.0)

2911

2.3

(3.1)

0.48

(0.000)

Health insurance scheme available in the community (%)

1358

79.8

(40.1)

1429

55.9

(49.7)

2787

67.5

(46.8)

24.0

(0.000)

1449

84.0

(36.7)

1462

62.4

(48.4)

2911

73.2

(44.3)

21.5

(0.000)

Number of community health insurance scheme members per HF

991

23.3

(40.9)

1144

14.8

(31.9)

2135

18.8

(36.6)

8.5

(0.000)

1369

36.9

(52.9)

1424

32.5

(56.2)

2793

34.7

(54.6)

4.3

(0.038)

Percentage of women who paid for delivery in a HF (%)b

1389

19.9

(20.0)

1485

14.3

(23.8)

2874

17.0

(22.2)

5.5

(0.000)

1449

0.133

(0.205)

1.462

0.119

(0.222)

2911

0.126

(0.214)

0.014

(0.082)

  1. a Kindness and knowledge originally ranked in from 1 to 10, but rescaled here from 1 to 100 for ease of interpretation of the coefficient
  2. b Calculated for each woman as average of the responses of all women in the same health facility catchment area, excluding the woman herself