Table 1

 Behavioural parameters used in the model

HaitiKenyaZimbabweUganda (N, C, W)*Uganda (E)*EthiopiaCote d’IvoireMalawiRwanda
*Uganda sites were provided separately as N—north (St Mary’s Hospital, Lacor, Gulu), C—central (St Francis Hospital, Nsambya, Kampala), west (Mbarara Hospital,), E—eastern (Jinja Hospital and Mbale Hospital).
†The default parameter was used in place of country specific data.
Sources for behaviour data are listed in the supplementary material (see online at
F, females; M, males; N/A, not available.
Baseline settings
    Age at first sex
    Probability of consistent condom per partnership0.†
    (male <24 with female <24)
    Mean age difference between partners6.45.47.3†7.3†7.3†7.3††
    (male age − female age)
Behavioural changes
(year implemented)
    Probability of HIV transmissionN/AN/A50%75%80%N/AN/AN/AN/A
    (proportionate reduction)(2000)(1990)(1994)
    Delay in age at first sex, males (years)N/AN/AN/AN/AN/AN/AN/AN/AN/A
    Delay in age at first sex, females (years)N/A+1 (1999)N/AN/AN/AN/AN/AN/AN/A
    Number of sexual partnerships per year(proportionate reduction)10% (1995)F 30% (1999)N/AN/AN/AN/AN/AN/AN/A
M 26% (1999); 0.80 (2001)
    Probability of consistent condom per partnership(proportionate increase)100% (1995)N/AN/AN/AN/AN/AN/AN/AN/A