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. 2018 Feb 16;8:3206. doi: 10.1038/s41598-018-21458-y

Table 1.

Answers to survey questions stratified by continent.

Country MTBDRplus/month MTBDRplus use MTBDRplus sample type MTBDRsl/month MTBDRsl use MTBDRsl sample type Other LPAs Thermocycler manufacturer Thermocycler Ramp rate (°C/s) Customisable ramp rate Pre-screening Xpert MTB/RIF
Africa [14 laboratories; median (IQR) of 46 (20–241) MTBDR plus assays per month]
South Africa 900 Diagnosis Smear-positive, smear-negative, isolates 50 Diagnosis Smear-positive, smear-negative, isolates N/A Applied Biosystems SimpliAmp 4.0 Yes Yes
Swaziland 350 Diagnosis, research Smear-positive, isolates 0 Diagnosis, research Smear-positive, isolates N/A Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
South Africa 245 Diagnosis Smear-positive, isolates 0 Diagnosis Smear-positive, isolates CM/AS Applied Biosystems ABI 4.0 Yes Yes
Kenya 240 Diagnosis, research Smear-positive, smear-negative 0 Research Smear-positive CM/AS Applied Biosystems GeneAmp 9700 2.3 Yes Yes
South Africa 150 Diagnosis, research Isolates 15 Diagnosis Isolates N/A Applied Biosystems ABI 6.0 Yes Yes
Ethiopia 75 Diagnosis, research Smear-positive, isolates 60 Diagnosis, research Smear-positive, smear-negative, isolates CM/AS Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
South Africa 50 Diagnosis Smear-positive, smear-negative, isolates 45 Diagnosis Smear-positive, smear-negative, isolates CM Applied Biosystems Proflex PCR system 4.0 Yes No
Nigeria 42 Diagnosis, research Smear-positive, smear-negative, isolates 27 Diagnosis, research Smear-positive, smear-negative, isolates CM/AS Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
South Africa 40 Diagnosis, research Isolates 0 Diagnosis, research Isolates CM Applied Diagnosis Various 4.0 Yes Yes
Nigeria 25 Diagnosis Smear-positive, smear-negative, isolates 35 Diagnosis Smear-positive, smear-negative, isolates CM Hain Lifescience GTQ-cycler 96 2.2 Yes Yes
Cameroon 20 Diagnosis, research Smear-positive, smear-negative 20 Diagnosis, research Smear-positive, smear negative CM/AS Applied Biosystems GeneAmp 9700 2.2 Yes Yes
Botswana 20 Diagnosis, research Smear-positive, isolates 20 Diagnosis, research Smear-positive, isolates CM Hain Lifescience GTQ-cycler 96 2.2 Yes No
South Africa 20 Diagnosis, research Smear-positive, smear-negative, isolates 0 Diagnosis, research Smear-positive, smear-negative, isolates CM Bio-Rad Various 4.0 No No
Côte d’Ivoire 14 Diagnosis, research Smear-positive, isolates 4 Diagnosis, research Smear-positive, isolates N/A Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
Asia [7 laboratories; median (IQR) of 150 (15–256) MTBDR plus assays per month]
Azerbaijan 750 Diagnosis, research Smear-positive, isolates 0 Diagnosis, research Smear-positive, isolates N/A Unknown Unknown 12.0 No Yes
Kyrgyzstan 256 Diagnosis Smear-positive, smear-negative, isolates 37 Diagnosis Smear-positive N/A Biometra Tprofessional 3.0 Yes Yes
Bangladesh 150 Diagnosis Smear-positive, smear-negative, isolates 120 Diagnosis Smear-positive, smear-negative, isolates N/A Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
India 150 Diagnosis Smear-positive, smear-negative, isolates 0 Diagnosis Smear-positive, isolates CM Bio-Rad Thermal Cycler T100 4.0 No No
Pakistan 30 Diagnosis, research Smear-positive, smear-negative, isolates 2 Research Isolates CM/AS Hain Lifescience GTQ-cycler 96 2.2 Yes Yes
Myanmar 15 Diagnosis Smear-positive, smear-negative, isolates 10 Diagnosis Smear-positive, smear-negative, isolates N/A Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
Thailand 5 Diagnosis Smear-positive, smear-negative 0 Research Isolates N/A Applied Biosystems 2720 Thermal Cycler 2.7 No No
Europe [10 laboratories; median (IQR) of 35 (23–64) MTBDR plus assays per month]
Denmark 90 Diagnosis, research Smear-positive, smear-negative, isolates 5 Diagnosis, research Smear-positive, isolates CM/AS Applied Biosystems SimpliAmp 4.0 Yes No
Belarus 75 Diagnosis Smear-positive, smear-negative, isolates 80 Diagnosis Smear-positive, smear-negative, isolates CM/AS Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
Moldova 60 Diagnosis, research Smear-positive, smear-negative, isolates 24 Diagnosis, research Smear-positive, smear-negative N/A Hain Lifescience GTQ-cycler 96 2.2 Yes Yes
Belgium 50 Diagnosis, research Smear-positive, isolates 30 Diagnosis, research Smear-positive, isolates Nipro Biometra Tprofessional 3.0 Yes Yes
Belarus 40 Diagnosis Smear-positive, isolates 0 Diagnosis Smear-positive, isolates CM Applied Biosystems 2720 Thermal Cycler 2.7 No Yes
Germany 30 Diagnosis Smear-positive, smear-negative, isolates 10 Diagnosis Smear-positive, smear-negative, isolates N/A Hain Lifescience GTQ-cycler 96 2.2 Yes Yes
Denmark 25 Diagnosis, research Smear-positive, smear-negative, isolates 4 Diagnosis, research Smear-positive, smear-negative, isolates CM/AS Applied Biosystems SimpliAmp 4.0 Yes No
France 25 Diagnosis Smear-positive, smear-negative, isolates 17 Diagnosis Smear-positive, smear-negative, isolates CM/AS, NTM-DR Bio-Rad Various 4.0 Yes No
Italy 15 Diagnosis, isolates Smear-positive, isolates 15 Diagnosis, research Smear-positive, isolate N/A Hain Lifescience GTQ-cycler 96 2.2 Yes No
Spain 10 Diagnosis Smear-positive, smear-negative, isolates 2 Diagnosis Smear-positive, smear-negative, isolates Inno-Lipa Applied Biosystems Various 4.0 Yes No
South America (1 laboratory; 20 MTBDR plus assays per month)
Brazil 20 Diagnosis, research Smear-positive, smear-negative, isolates 0 Diagnosis, research Smear-positive, smear-negative, isolates MOTT ID Bio-Rad C1000 Touch 5.0 Yes Yes
Overall [32 laboratories; median (IQR) of 41 (20–150) MTBDR plus assays per month]
3987 632 16/32 respondents test smear-negative specimens and are hence likely affected by incorrect ramp rate usage 7/32 used the correct ramp rate 20/32 have a customisable ramp rate 22/32 use Xpert as a pre-screen

LPA - Line probe assay; HCV – HCV Genotype 2.0 Assay (LiPA); CM-Genotype Mycobacterium CM Ver 2.0; NTM-DR – GenoType NTM-DR Ver 1.0;

AS - Genotype Mycobacterium AS Ver 1.0; IQR - Interquartile Range; Xpert – Xpert MTB/RIF assay.

Survey questions are in the supplement. Text in bold refers to laboratories using the manufacturer-recommended ramp rate.