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Table 3 Costs of tuberculosis tests in USD

From: Cost of three models of care for drug-resistant tuberculosis patients in Nigeria

  Lab 1 Lab 2 Average (%)
  Salaries bottom-up Salaries top-down Salaries bottom-up Salaries top-down  
Cost of 1 AFB smear microscopy Ziehl-Neelsen
 Reagents 0.33 0.33 0.43 0.43 0.38 (6)
 Supplies 1.36 1.36 4.90 4.90 3.13 (49)
 Labor 0.91 1.74 1.55 1.23 1.36 (21)
 Equipment 0.70 0.70 0.99 0.99 0.85 (13)
 Overhead 0.36 0.36 0.87 0.87 0.62 (10)
 Total 3.67 4.50 8.73 8.41 6.33 (100)
Cost of 1 AFB Smear microscopy fluorescence
 Reagents 0.30 0.30 0.30 0.30 0.30 (5)
 Supplies 1.41 1.41 4.90 4.90 3.16 (20)
 Labor 1.00 1.74 1.66 1.23 1.41 (22)
 Equipment 0.72 0.72 0.99 0.99 0.86 (13)
 Overhead 0.38 0.38 0.86 0.86 0.62 (10)
 Total 3.80 4.55 8.72 8.28 6.34 (100)
Cost of solid culturea
 Reagents 12.04 12.04 13.73 13.73 12.89 (33)
 Supplies 14.40 14.40 5.07 5.07 9.74 (25)
 Labor 0.95 5.31 4.84 14.67 6.44 (16)
 Equipment 6.40 6.40 8.57 8.57 7.49 (19)
 Overhead 3.72 3.72 2.03 2.03 2.88 (7)
 Total 37.51 41.87 34.24 44.08 39.43 (100)
Cost of liquid culture
 Reagents 12.00 12.00 14.84 14.84 13.42 (14)
 Supplies 27.65 27.65 20.21 20.21 23.93 (25)
 Labor 1.02 6.48 3.64 48.48 14.91 (15)
 Equipment 22.35 22.35 52.25 52.25 37.30 (38)
 Overhead 6.93 6.93 8.37 8.37 7.65 (8)
 Total 69.94 75.41 99.31 144.15 97.20 (100)
Cost of first line DST (liquid culture)
 Reagents 9.59 9.59 9.50 9.50 9.55 (7)
 Supplies 43.42 43.42 61.57 61.57 52.50 (40)
 Labor 0.88 20.28 3.02 73.90 24.52 (19)
 Equipment 16.43 16.43 50.88 50.88 33.66 (26)
 Overhead 7.73 7.73 12.70 12.70 10.22 (8)
 Total 78.05 97.45 137.68 208.56 130.44 (100)
Cost for first and second line DST (solid culture)
 Reagents 3.44 3.44    3.44 (5)
 Supplies 41.52 41.52    41.52 (61)
 Labor 1.42 28.39    14.90 (22)
 Equipment 2.94 2.94    2.94 (4)
 Overhead 5.43 5.43    5.43 (8)
 Total 54.74 81.71 ND ND 68.23 (100)
Cost of Xpert MTB/RIF test
 Reagents 9.98 9.98 9.98 9.98 9.98 (41)
 Supplies 1.28 1.28 8.93 8.93 5.11 (21)
 Labor 0.57 11.30 0.56 11.23 5.92 (24)
 Equipment 2.28 2.28 3.49 3.49 2.89 (12)
 Overhead 1.55 0.01 1.43 0.01 0.75 (3)
 Total 15.67 24.85 24.38 33.64 24.64 (100)
  1. List of abbreviations: AFB Acid-fast bacilli, DST drug susceptibility testing, MTB Mycobacterium tuberculosis, ND not done in this lab, RIF rifampicin, TB tuberculosis
  2. asolid culture based on Lowenstein Jensen media
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