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Table 3 Health related quality of life estimated by DID model with STATA

From: Improving health related quality of life among rural hypertensive patients through the integrative strategy of health services delivery: a quasi-experimental trial from Chongqing, China

Outcome Variable

(y)

Baseline

Follow-up

Control

\( \left({\widehat{\upbeta}}_0\right) \)

Intervention

\( \left({\widehat{\upbeta}}_0+\widehat{\upgamma}\right) \)

Diff (BL)

\( \left(\widehat{\upgamma}\right) \)

Control

\( \left({\widehat{\upbeta}}_0+{\widehat{\upbeta}}_1\right) \)

Intervention

\( \left({\widehat{\upbeta}}_0+{\widehat{\upbeta}}_1+\widehat{\upgamma}+\widehat{\updelta}\right) \)

Diff (FU)

\( \left(\widehat{\upgamma}+\widehat{\updelta}\right) \)

DIFF-IN-DIFF

\( \left(\widehat{\updelta}\right) \)

SF-36

51.426

49.588

−1.839

53.93

56.683

2.753

4.591

S.E.

0.98

0.634

1.167

1.156

0.719

1.362

1.794

p

  

0.115

  

0.043

0.011

PF

63.179

64.622

1.443

63.974

66.994

3.02

1.577

S.E.

1.303

0.842

1.551

1.536

0.956

1.81

2.384

p

  

0.352

  

0.095

0.508

RP

27.381

27.662

0.281

32.616

41.186

8.57

8.289

S.E.

2.052

1.326

2.443

2.419

1.505

2.85

3.753

p

  

0.909

  

0.003

0.027

BP

56.376

56.388

0.012

60.079

63.692

3.613

3.601

S.E.

1.17

0.756

1.393

1.38

0.858

1.625

2.14

p

  

0.993

  

0.026

0.093

GH

41.629

38.083

−3.546

44.298

43.045

−1.253

2.293

S.E.

1.259

0.814

1.499

1.485

0.924

1.749

2.303

p

  

0.018

  

0.474

0.32

VT

52.25

52.214

−0.036

56.995

58.686

1.691

1.727

S.E.

0.924

0.597

1.1

1.089

0.678

1.283

1.69

p

  

0.974

  

0.188

0.307

SF

71.339

65.249

−6.091

70.447

74.119

3.672

9.762

S.E.

1.103

0.713

1.314

1.301

0.81

1.532

2.019

p

  

0.000

  

0.017

0.000

RE

44.762

38.806

−5.956

49.448

56.026

6.578

12.534

S.E.

2.232

1.443

2.657

2.632

1.637

3.099

4.083

p

  

0.025

  

0.034

0.002

MH

54.495

53.68

−0.816

60.149

61.346

1.197

2.013

S.E.

0.874

0.565

1.041

1.031

0.641

1.214

1.599

p

  

0.433

  

0.324

0.208

  1. * Means and Standard Errors were estimated by linear regression.