Table 3: The term HIV-unexposed infants divided into the three feeding groups at 4 months of age: the number of infants, the thymic size (Ti, median, and range), and the weight and length (mean and range) at the times of assessment.

Three feeding groupsValuesNewborn 4 months8 months12 months

Exclusively breastfedNumber 2121 1515
Exclusively breastfedTi 12.9
(7.0–23.9)
37.8
(16.2–83.2)
30.6
(16.8–55.2)
17.3
(9.9–53.0)
Exclusively breastfedWeight (g)3446
(2750–4200)
7237
(5090–8967)
9262
(7147–11384)
10375
(8522–11947)
Exclusively breastfedLength (cm)52.1
(50.0–55.0)
64.9
(59–69)
72.3
(66.0–76.50)
77.7
(68.0–82.0)
Partially breastfedNumber13131111
Partially breastfedTi11.2
(5.5–21.1)
25.2 
(15.6–50.0)
25.6
(6.3–53.1)
17.4
(9.3–31.1)
Partially breastfedWeight (g)3658
(2600–4500)
6917
(5333–8850)
8887
(7100–11200)
10114
(8601–12149)
Partially breastfedLength (cm)52.7
(49.0–57.0)
64.3
(60.0–68.2)
71.3
(67.0–76.0)
75.4
(71.5–80.0)
Exclusively formula-fedNumber13131111
Exclusively formula-fedTi9.7
(3.8–20.2)
17.6
(12.2–32.6)
30.4
(7.4–47.6)
17.0
(7.4–33.0)
Exclusively formula-fedWeight (g)3518
(2550–4850)
7029
(5225–9476)
9503
(7282–11389)
10861
(8259–12359)
Exclusively formula-fedLength (cm)52.4
(49.0–56.0)
64.7
(60.0–69.0)
73.2
(70.0–78.0)
77.5
(74.0–81.0)