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Table 4 Cost figures used in the cost analysis of Isoniazid Preventive Therapy for HIV-infected patients in Dar es Salaam for 24 months of follow upa

From: Cost-Effectiveness of isoniazid preventive therapy among HIV-infected patients clinicaly screened for latent tuberculosis infection in Dar es Salaam, Tanzania: A prospective Cohort study

Description Cost parameter

Cost in IPT group (US $)

Cost in the Control group (US $)

1st year

2nd year (3% discount)

Total cost for 2 years

1st year

2nd year (3% discount)

Total cost for 2 years

Clinic personnel

 Doctors

225,317

218,754

444,071

216,074

213,057

429,131

 Nurses

197,738

191,978

389,716

175,074

169,974

345,048

 Medical assistants

44,890

43,583

88,473

40,810

39,621

80,431

 Laboratory staff

82,808

80,396

163,204

81,988

79,600

161,588

 Pharmacy staff

82,808

80,396

163,204

81,988

79,600

161,588

Laboratory tests

 Sputum smear

27

17

44

21

19

40

 Sputum culture

134

86

220

106

96

202

 Chest X-ray

179

115

294

141

128

269

 Full blood count

54

35

89

42

38

81

 ESR

18

12

30

14

13

27

Medication costs

 INH (300 mg/day)b

94,807

-

94, 807

-

-

-

 1st line anti-TB drugsc

265

-

265

927

514

1441

Utilities

 Water

3885

3773

7658

3533

3430

6963

 Electricity

15,207

14,764

29,971

13,825

13,422

27,247

Recurrent costs

     

0

 Clinic space

60,826

59,054

119,880

55,296

53,685

108,981

 Personnel training

3819

-

3819

4177

-

4177

Total cost

767,892

649,382

1,417,273

633,205

613,578

1,246,783

Incremental costd

  

US$ 170,490

ICER per TB case preventede

US$ 405.93 per TB case prevented

ICER per death avertedf

US$ 174.15 per death averted

  1. IPT Isoniazid preventive therapy, HIV-Human immunodeficiency virus, INH- Isoniazid, TB-Tuberculosis
  2. IT Information technology, ESR -Erythrocyte sedimentation rate
  3. aAnnualized total costs for the two groups bINH for IPT group only
  4. c1st line anti-TB drugs were given to patients who developed active tuberculosis
  5. dDiscounted cost for 2 years in the IPT group minus discounted cost for 2 years in the Control group
  6. eIncremental cost for the entire cohort divided by number of TB cases prevented
  7. fIncremental cost for the entire cohort divided by number of deaths averted