Table 4. Minimum required number of p24⁺ cells for 90% statistical power.

At 90% power, the minimum number of p24⁺ cells (denominator of 20,000 CD4⁺ T cells) needed to observe a threshold virus inhibition of 5–30% for 2–6 replicates. The minimum allowed percentage of HIV infection was 0.5%.

	Virus inhibition (%)
Number of replicates	5	8	10	15	20	25	30
2	2999	1498	957	397	209	122	100
3	2367	926	632	259	135	100	100
4	1783	738	459	191	100	100	100
5	1559	635	375	159	100	100	100
6	1393	486	314	133	100	100	100