Surrogate marker

Assessment point

Status of priming

HIV-1 positive

HIV negative

Community controls

Fe pos (Sgr I)

n = 54

Fe neg (Sgr II)

n = 54

Fe pos (Sgr III)

Fe neg (Sgr IV)

(Sgr V)

Category of ARI on

follow up

Category of ARI on follow up

PT

n = 38

non-PT

n = 16

PT

n = 10

non-PT

n = 44

n = 30

n = 50

n = 40

Citrulline

(µM)

En

Unpr

1.5 ± 0.8

3.1 ± 1.4

19.2 ± 3.9#

16.4 ± 3.9#

2.7 ± 1.4

7.2 ± 4.3

8.4 ± 3.2

Pr

1.6 ± 0.6

3.9 ± 1.8

38.6 ± 6.9

30.4 ± 4.7

2.9 ± 1.6

19.3 ± 9.6

16.6 ± 8.8

Fu

Unpr

18.6 ± 8.2*

11.4 ± 2.7#*

16.2 ± 7.6#

21.4 ± 4.7#

NA

NA

NA

Pr

46.6 ± 16.8§†*

32.8 ± 4.7*

34.3 ± 8.2*

38.4 ± 9.6*

NA

NA

NA

Neopterin

(µM)

En

Unpr

0.42 ± 0.21

0.64 ± 0.26

5.1 ± 2.7#

3.8 ± 1.7#

0.49 ± 0.31

2.1 ± 1.4

1.8 ± 1.2

Pr

0.46 ± 0.32

0.62 ± 0.21

11.4 ± 3.8

9.6 ± 1.6

0.51 ± 0.38

6.1 ± 2.8

5.2 ± 1.8

Fu

Unpr

8.8 ± 2.6*

4.4 ± 1.8#*

8.2 ± 3.1#

5.4 ± 2.6#

NA

NA

NA

Pr

14.1 ± 4.5§†*

10.2 ± 3.6*

12.4 ± 3.8*

9.2 ± 3.7*

NA

NA

NA