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. Author manuscript; available in PMC: 2016 Apr 1.
Published in final edited form as: HIV Med. 2015 Apr;16(0 1):77–87. doi: 10.1111/hiv.12236

Table 2.

Prevalence of transmitted drug resistance by geographical region

Region No. participants Transmitted Drug Resistance
Any NRTI NNRTI PI
N % (95% CI) N % (95% CI) N % (95% CI) N % (95% CI)
Total 1,869 188 10.1 (8.7, 11.5) 75 4.0 (3.2, 5.0) 85 4.5 (3.6, 5.6) 52 2.8 (2.1, 3.6)
United States 405 51 12.6 (9.5, 16.2) 15 3.7 (2.1, 6.0) 34 8.4 (5.9, 11.5) 8 2.0 (0.9, 3.9)
Australia 97 17 17.5 (10.6, 26.6) 9 9.3 (4.3, 16.9) 4 4.1 (1.1, 10.2) 5 5.2 (1.7, 11.6)
Asia 75 6 8.0 (3.0, 16.6) 2 2.7 (0.3, 9.3) 3 4.0 (0.8, 11.2) 2 2.7 (0.3, 9.3)
Europe 1,292 114 8.8 (7.3, 10.5) 49 3.8 (2.8, 5.0) 44 3.4 (2.5, 4.5) 37 2.9 (2.0, 3.9)
 United Kingdom 320 15 4.7 (2.6, 7.6) 6 1.9 (0.7, 4.0) 3 0.9 (0.2, 2.7) 6 1.9 (0.7, 4.0)
 Germany 271 29 10.7 (7.3, 15.0) 12 4.4 (2.3, 7.6) 10 3.7 (1.8, 6.7) 11 4.1 (2.0, 7.1)
 Spain 191 24 12.6 (8.2, 18.1) 6 3.1 (1.1, 6.7) 11 5.8 (2.9, 10.1) 10 5.2 (2.5, 9.4)
 France 96 16 16.7 (9.8, 25.7) 12 12.5 (6.6, 20.8) 4 4.2 (1.1, 10.3) 3 3.1 (0.6, 8.9)
 Belgium 88 5 5.7 (1.9, 12.8) 3 3.4 (0.7, 9.6) 2 2.3 (0.3, 8.0) 0 0 (0, 4.1)
 Greece 92 8 8.7 (3.8, 16.4) 3 3.3 (0.7, 9.2) 8 8.7 (3.8, 16.4) 0 0 (0, 3.9)
 Other 234 17 7.3 (4.3, 11.4) 7 3.0 (1.2, 6.1) 6 2.6 (0.9, 5.5) 7 3.0 (1.2, 6.1)
p-value Transmitted Drug Resistance
Any NRTI NNRTI PI
Comparing regions* 0.01 0.09 0.001 0.35
Comparing countries within Europe 0.002 0.004 0.004 0.06

Confidence intervals defined using the Clopper-Pearson Method

TDR defined according to WHO classification (2009) plus E138K and T215N

Other countries in Europe with <50 patients: Austria, Czech Republic, Denmark, Estonia, Finland, Ireland, Israel, Italy, Luxembourg, Norway, Poland, Portugal, Sweden, Switzerland.

*

Comparing regions=United States, Europe, Australia and Asia