Variable

HIV DNA Positive

(%)

HIV DNA Negative

(%)

Total (%)

X2

P = value

Ages of infants at DBS Sample collection

<6 weeks

58 (2.3)

2456 (97.7)

2514 (25.6)

38.865

0.001

>6 - 8 weeks

69 (1.7)

4008 (93.3)

4077 (41.5)

>8 - 12 weeks

19 (3.3)

551 (96.6)

570 (5.8)

>12 weeks

109 (4.1)

2553 (95.9)

2662 (27.1)

Sex

Male

143 (2.9)

4794 (97.1)

4937 (50.2)

76.055

0.001

Female

112 (2.3)

4774 (97.7)

4886 (49.8)

Cotrimoxazole prophylaxis given to infant

No Cotrimoxazole

51 (3.7)

1334 (96.3)

1385 (14.1)

7.696

0.006

Yes, receiving cotrimoxazole daily

204 (2.4)

8234 (97.6)

8438 (85.9)

Breastfeeding status at the time of DBS sample collection

Yes, breastfeeding

214 (2.5)

8342 (97.5)

8556 (87.1)

1.095

0.295

Not breastfeeding

41 (3.2)

1226 (96.8)

1267 (12.9)

Was HIV-exposed infant ever breastfed?

Yes

246 (2.6)

9223 (97.4)

9469 (96.4)

0.348

0.556

No

9 (2.5)

345 (97.5)

354 (3.6)