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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.