Table 2

Sensitivity analysis on the effect of a 20% change in model interaction inputs on the model best-fit attributable fraction of HIV due to HSV-2 among FSW

Model input parameters (values used for best fit simulation in parentheses, derived from table S1 in the supplementary online appendix)Relative % change in attributable fraction of HIV incidence among FSW due to HSV-2 from best fit value of 35.54% (absolute value)*
−20% relative change in parameter+20% relative change in parameter
Cofactor for increased transmission of HIV to person symptomatically shedding HSV-2 (4.5)−8.10% (32.66%)+8.10% (38.42%)
Cofactor for increased transmission of HIV from co-infected partner symptomatically shedding HSV-2 (2.7)−3.70% (34.22%)+3.70% (36.85%)
Cofactor for increased transmission of HSV-2 from co-infected partner with high HIV viraemia (0.76)−1.15% (35.13%)+1.15% (35.95%)
Cofactor for increased symptomatic HSV-2 shedding rate in those with HIV (1.4)−0.66% (35.30%)+0.66% (35.77%)
Cofactor for increased asymptomatic HSV-2 shedding in those with HIV (2.4)−0.24% (35.45%)+0.24% (35.62%)
Cofactor for increased transmission of HSV-2 to a person with high HIV viraemia (1.7)+0.14% (35.59%)−0.14% (35.49%)
  • * R2 value over 0.98 in the multilinear regression.

  • FSW, female sex worker; HSV-2, herpex simplex virus type 2.