Table 2 Outcomes over 20 years (2015–2035) in people with HIV (age 15–65), according to monitoring strategy.

From: Sustainable HIV treatment in Africa through viral-load-informed differentiated care

 

No monitoring

Clinical monitoring

Clinical monitoring viral load confirmation

Clinical monitoring CD4 count confirmation

CD4 count monitoring (WHO)

CD4 count monitoring (<200)

Viral-load-informed differentiated care using DBS

Percentage of ART-experienced people who have fulfilled criterion for failure of first-line ART

7%

14%

10%

13%

41%

26%

27%

Percentage of ART-experienced people who have started second-line ART

3%

13%

10%

13%

38%

24%

25%

Percentage of people on ART who have (true) viral load <1,000 cps ml -1 (mean; over 20-year time horizon)

76%

79%

78%

79%

85%

82%

86%

Death rate (per 100 person years) among people on ART

4.43

3.63

4.06

3.67

3.02

3.07

3.18

Death rate (per 100 person years) among people with HIV

5.45

4.91

5.2

4.93

4.36

4.43

4.47

Death rate (per 100 person years) in the whole adult population

1.69

1.63

1.66

1.63

1.56

1.58

1.57

Death rate (per 100 person years) among people on ART who have virologically failed first-line ART (regardless of whether monitoring strategy has detected it)

9.94

7.5

8.66

7.62

5.53

5.79

5.85

Incidence of HIV (per 100 person years)

0.84

0.81

0.83

0.81

0.76

0.79

0.73

For each model run for each strategy, the outcome of interest (as listed in the first column) is output for each 3-month period between 2015–2035. Over 500 model runs are done for each strategy, then means are taken over 3-month periods and model runs. ART, antiretroviral therapy; Cps, copies; DBS, dried blood spot; WHO, World Health Organization.