. 2010 Sep 13;5(9):e12598. doi: 10.1371/journal.pone.0012598

Table 2. Plasma HIV-1 RNA reductions (and 95% Confidence Intervals [CI]) predicted to result in selected levels of HIV-1 transmission risk reduction.

HIV-1 transmission risk reduction	Plasma HIV-1 RNA reduction (log₁₀ copies/mL)	95% CI (log₁₀ copies/mL)
25%	0.31	0.25–0.40
33%	0.43	0.34–0.56
37%	0.50	0.40–0.65
50%	0.74	0.60–0.97
67%	1.18	0.95–1.56
75%	1.48	1.19–1.95