Table 2 Comparison of age at attainment of milestones for HIV-infected infants vs HIV - unexposed uninfected infants using Kaplan Meier survival analyses

 Sitting with support

63

5 (5, 6)

91

4 (4, 5)

<0.0001

 Sitting unsupported

61

7 (6, 7)

88

6 (5, 6)

<0.0001

 Walking with support

56

9 (10, 12)

77

9 (8, 10)

0.0002

 Walking unsupported

54

15 (13, 18)

69

13 (11, 14)

<0.0001

 Monosyllabic speech

53

15 (13, 17)

72

12 (10, 13)

0.0001

 Throwing toys

55

17 (15, 19)

60

15 (14, 16)

<0.0001

 Naming objects

52

22 (19, 24)

45

19 (18, 23)

0.07