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. Author manuscript; available in PMC: 2015 Aug 12.
Published in final edited form as: Arch Dis Child. 2012 Dec 5;98(4):258–264. doi: 10.1136/archdischild-2012-302633

Table 1.

Characteristics at the time of assessment of 156 perinatally HIV-infected South African children previously suppressed on ritonavir-boosted lopinavir (LPV/r)-based treatment and randomized to either maintain the LPV/r-based regimen or switch to a nevirapine (NVP)-based regimen

Randomization group
characteristic Combined
(n=156)
Lpv/r
(n=85)
NVP
(n=71)
P-valuea
Males n(%) 81 (51.9) 41 (48.2) 40 (56.3) 0.313
Age, years Mean±SD 5.1±0.8 5.2±0.8 5.0±0.8 0.095
Total Time on ART, years Mean±SD 4.2±0.7 4.2±0.7 4.1±0.7 0.338
Time Since Randomization, years Mean±SD 3.4±0.7 3.4±0.7 3.3±0.7 0.469
Weight, kg Mean±SD 17.1±2.9 17.2±3.0 16.8±2.8 0.379
Weight-for-Age z-score Mean±SD −0.67±1.0 −0.67±0.9 −0.66±1.0 0.912
Height, cm Mean±SD 105.3±7.2 105.7±7.0 104.9±7.4 0.537
Height-for-age z-score Mean±SD −0.98±1.1 −1.02±1.0 −0.93±1.2 0.575
BMI, kg/m2 Mean±SD 15.3±1.5 15.4±1.6 15.2±1.4 0.529
BMI-for-age z-score Mean±SD −0.1±1.0 −0.09±1.0 −0.11±1.1 0.884
Blood Pressure, mmHg
   Systolic
   Diastolic
Mean±SD
98.5 ± 13.9
62.6 ± 11.6

99.6 ± 13.7
63.2 ± 12.3

97.0 ± 14.1
61.8 ± 10.6

0.294
0.464
Viral Load, copies/mL
   <50
   50–999
   ≥1000
n (%)
137 (87.8)
12 (7.7)
7 (4.5)

72 (84.7)
8 (9.4)
5 (5.9)

65 (91.6)
4 (5.6)
2 (2.8)
0.450
CD4 percent, % Median
(IQR)
36.7
(32.7,41.3)
35.9
31.2,40.6
37.2
33.0,41.5
0.185
CD4 count, cells/mm3 Median
(IQR)
1451
(1048, 1749)
1356
(962, 1620)
1480
(1174,1773)
0.047
LD Classification
   LD
   Possible LD
   No LD
n (%)
13 (8.3)
18(11.5)
125 (80.1)

6 (7.1)
8 (9.4)
71 (83.5)

7 (9.9)
10 (14.1)
54 (76.1)
0.505

Abbreviations: SD, standard deviation; IQR, inter-quartile range

a

LPV/r- and NVP-groups were compared using the Wilcoxon rank sum test and t-test for continuous variables and chi-squared or Fisher's exact test for categorical variables