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Table 2 Factors associated with MTCT of HIV in two areas of China, 2004–2018 (N = 899)

From: Preventing mother to child transmission of HIV: lessons learned from China

 

AORa (95% CI)

P

AORb (95% CI)

P

Maternal age (years)

  ≤ 27

1

 

1

 

  > 27

0.96 (0.54, 1.71)

0.894

0.89 (0.47, 1.66)

0.696

Ethnicity

 Han

1

 

1

 

 Uygur

0.38 (0.03, 4.36)

0.413

0.38 (0.03, 4.58)

0.423

 Others

0.69 (0.09, 5.09)

0.702

0.69 (0.09, 5.27)

0.706

Route of infection

 Sex

1

 

1

 

 Others

1.13 (0.36, 3.58)

0.818

1.14 (0.34, 3.82)

0.825

HIV status of sexual partner

 Negative

1

 

1

 

 Positive

1.15 (0.60, 2.21)

0.671

1.16 (0.60, 2.24)

0.649

 Unknown

0.77 (0.22, 2.63)

0.664

0.83 (0.23, 3.01)

0.765

Multipara or not

 Yes

1.17 (0.64, 2.16)

0.594

1.19 (0.61, 2.30)

0.598

 No

1

 

1

 

Sex of infant

 Female

1

 

1

 

 Male

1.10 (0.62, 1.97)

0.736

1.12 (0.62, 2.00)

0.703

 Unknown

0.74 (0.19, 2.94)

0.661

0.88 (0.20, 3.79)

0.858

ARVs for pregnant women

 Yes

0.14 (0.07, 0.27)

< 0.001

0.11 (0.06, 0.23)

< 0.001

 No

1

 

1

 

Regimens of ARVs for mothers

 Prenatal cART

1

 

1

 

 AZT alone

12.87 (1.18, 140.65)

0.037

11.35 (1.03, 124.80)

0.047

 sdARVs

14.23 (1.61, 126.12)

0.018

13.27 (1.48, 118.83)

0.022

 No ARVs

56.02 (7.01, 447.60)

< 0.001

62.33 (7.77, 500.15)

< 0.001

Intrapartum CD4 count(/μL)

  ≥ 200

1

 

1

 

  < 200

5.21 (2.28, 11.87)

< 0.001

5.41 (2.32, 12.61)

< 0.001

 Unknown

3.13 (1.42, 6.92)

0.006

3.41 (1.53, 7.59)

0.004

Mode of delivery

 Cesarean section

1

 

1

 

 Vaginal delivery

1.41 (0.76, 2.62)

0.263

1.46 (0.78, 2.75)

0.227

Birth weight

  ≥ 2500 g

1

 

1

 

  < 2500 g

4.93 (2.20, 11.02)

< 0.001

5.18 (2.27, 11.81)

< 0.001

 Unknown

1.11 (0.44, 2.78)

0.818

1.33 (0.42, 4.15)

0.619

IP

 Yes

1

 

1

 

 No

5.76 (3.04, 10.93)

< 0.001

6.74 (3.43, 13.23)

< 0.001

Breastfeeding

 Never

1

 

1

 

 Ever

11.14 (5.38, 23.03)

< 0.001

12.31 (5.78, 26.20)

< 0.001

Complex interventions

 Prenatal cART+IP + FF

1

 

1

 

 AZT alone+IP + FF

13.86 (1.29, 149.25)

0.031

12.21 (1.13, 131.71)

0.040

 sdARVs+IP + FF

16.17 (1.84, 142.00)

0.013

15.05 (1.71, 132.86)

0.015

 IP + FF

34.53 (3.88, 307.51)

0.002

35.81 (4.00, 320.54)

0.002

 Only FF

31.77 (3.74, 270.02)

0.002

35.99 (4.22, 306.99)

0.001

 Non-intervention

162.32 (19.56, 1347.36)

< 0.001

179.81 (21.59,1497.57)

< 0.001

 Others

39.02 (1.94, 783.13)

0.017

40.21 (1.98,817.95)

0.017

  1. AOR Adjusted odds ratio
  2. AORa were adjusted for area and year of birth
  3. AORb were adjusted for area, year of birth, maternal age (years), ethnicity, route of infection, HIV status of sexual partner, multipara or not, and sex of infant