Mean values/μL | Months on cART | 6 | 12 | 24 | 36 | 48 |
LPV/r | n = | 1098 | 802 | 472 | 283 | 121 |
 | ΔCD4 | 61 | 81 | 125 | 138 | 171 |
EFV | n = | 3089 | 2409 | 1644 | 1136 | 781 |
 | ΔCD4 | 50 | 71 | 94 | 104 | 136 |
Difference in ΔCD4: LPV/r – EFV |  | 11 | 10 | 31 | 34 | 35 |
p value for ΔCD4†|  | 0.0294 | 0.1554 | 0.0028 | 0.0229 | 0.5188 |