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Table 2 Samples collected per clinic and proficiency panel results per clinic

From: The implementation of an external quality assurance method for point- of- care tests for HIV and syphilis in Tanzania

  

POCT performed per clinic

Proficiency panel results

EQA results (DBS)

Clinic

Clinic type

Number of HIV tests

Number of syphilis tests

Last 3 months*

Overall (7 months)

Sensitivity** (95% CI)

Specificity** (95% CI)

1

District referral hospital

272

422

100%

86%

61.8%

(43.6-77.8%)

96.9%

(94.7-98.4%)

2

Dispensary

13

109

100%

89%

88.9%

(51.8-99.7%)

93.0%

(86.1-97.1%)

3

Dispensary

45

71

100%

86%

85.7%

(42.1-99.6%)

95.3%

(86.9-99%)

4

Dispensary

72

172

100%

88%

80.0%

(51.9-95.7%)

95.5%

(91–98.2%)

5

Dispensary

15

113

100%

90%

75.0%

(42.8-94.5%)

95.0%

(88.8-98.4%)

6

Dispensary

24

150

100%

93%

52.0%

(31.3-72.2%)

95.2%

(89.8-98.2%)

7

Health centre

84

337

100%

79%

37.5%

(18.8-59.4%)

98.7%

(96.8-99.7%)

8

Health centre

257

258

100%

92%

60.9%

(38.5-80.3%)

98.3%

(95.7-99.5%)

9

Health centre

25

283

100%

64%

77.8%

(57.7-91.4%)

98.0%

(95.5-99.4%)

10

Health centre

165

286

100%

95%

65.4%

(44.3-82.8%)

97.7%

(95–99.1%)

 

Total

972

2201

100%

86%

64.4%

(57.3-71%)

97.0%

(96.2-97.7%)

  1. *last 3 months of proficiency panel results (November - January 2011).
  2. **sensitivity and specificity of syphilis POCT using DBS TPPA as reference.