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Table 3 Medical resources and cost-effectiveness results between the pre-intervention and post-intervention

From: Efficacy of an incentive intervention on secondary prophylaxis for young people with rheumatic fever: a multiple baseline study

Results

Q1

Q2

Q3

Q4

Overall

Number of eligible patients

 

74

73

71

60

77

Number of phones allocated

Post-intervention only

82

82

80

72

86

Number of visits before successful injection

pre-intervention

107

109

106

81

403

Post-intervention

86

96

105

75

362

Number of phone calls/texts before successful injection

pre-intervention

285

286

273

209

1053

Post-intervention

369

362

426

302

1459

Number of injections wasted

pre-intervention

10

10

9

7

36

Post-intervention

7

8

15

7

37

Number of successful Injections

pre-intervention

194

192

190

160

736

Post-intervention

212

212

201

165

790

Total costs

pre-intervention

$42,594

$42,499

$41,785

$34,209

$161,086

Post-intervention

$55,928

$56,960

$56,324

$45,303

$214,514

Incremental Effectiveness (extra successful injections)

 

18

20

11

5

54

Incremental Cost

 

$13,335

$14,461

$14,539

$11,094

$53,428

ICER (cost per extra successful injection)

 

$741

$723

$1322

$2219

$989

  1. Patients were given a second phone if the first one was lost or broken; Note: Total costs include phone costs even though they were donated to the project