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Table 2 Input parameters and plausible ranges used for sensitivity analysis in the simple decision tree analysis for infant outcomes

From: Cost-effectiveness of option B+ in prevention of mother-to-child transmission of HIV in Yunnan Province, China

Parameters

Base-case

Reference

HIV Epidemiology

 Number of HIV-infected pregnant women

2000

Surveillance data

 Percentage of pregnant women with CD4 count> 350 cells/μl(%)

64

Surveillance data

MTCT transmission rates

 Background transmission rate without intervention (%)

34.80

Surveillance data

 Transmission rate, Option A with infant prophylaxis, formula feeding(%)

7.28

Surveillance data

 Transmission rate, Option B, Option B+ and eligible women on ART With infant prophylaxis, formula feeding(%)

3.86(1.00–5.00)

Surveillance data, [20]

 Delivery proportion(%)

55.79

Surveillance data

 Newborn mortality rate

0.0069

China Health Statistical Yearbook 2013

Health utility

0.74

[21]

Cost

 HIV testing and counselling

US$4.06

Surveillance data

 CD4 screening

US$52.24

Surveillance data

 Drugs in Option A

US$23.94

Surveillance data

 Drugs in Option B and Option B+(until 42 days after delivery)

US$235.65

Surveillance data

 Infant ARVs prophylaxis

US$18.14

Surveillance data

 Formula feeding

US$580.42

Surveillance data

 Infant diagnosis

US$26.12

Surveillance data

 Discounted lifetime cost for an HIV infected child on ART(69.5 years)

US$247,163.94

[19]