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Table 1 Profile all laboratory specimens analysed between 2016 and 2019

From: HIV-1 drug resistance genotyping success rates and correlates of Dried-blood spots and plasma specimen genotyping failure in a resource-limited setting

  Overall total For sample type
DBS Plasma
Number analysed 6837 3836 3001
Proportion (%) 100 56.1 43.9
Successfully genotyped 4489 1910 2579
Genotyping success rate (%) 4489/6837 (65.7) 1910/3836 (49.8) 2579/3001 (85.9)
Year of laboratory analysis N (%)
 2016 1990 89/1990 (4.5) 1901/1990 (95.5)
 2017 1001 484/1001 (48.4) 517/1001 (51.6)
 2018 1699 1302/1699 (76.6) 397/1699 (23.4)
 2019 2147 1961/2147 (91.3) 186/2147 (8.7)
Specimen source
 Research studies 3533 863/3533 (24.4) 2670/3533 (75.6)
 Routine clinical diagnosis 3304 2973/3304 (90.0) 331/3304(10.0)
Pre-genotyping viral load testing
 Not done 3893 1884/3893 (48.4) 2009/3893 (51.6)
 Done 2944 1952/2944 (66.3) 992/2944 (33.7)
 Median viral load for known 4.31log10 (3.57–4.93log10) 4.12log10 (3.43–4.8log10) 4.62 log (3.94–5.13log10)