Demographic, behavioural and clinical information of 49 HIV-1 concordant couples included in the study.

Data are median (interquartile range) values or n (%) when indicated.an = 49 for variables for which husbands in 4 polygamous partnerships were asked to report separately for each wife.bOther nationalities were Mali, Mauretania, Guinea or Guinea-Bissau.cRegiondOther ethnicities were Bambara or Diola.eAt least one year of education in the specified grade.fMann-Whitney U test was used to compare independent continuous data.gChi-square or Fisher's exact test was used to compare independent proportional data.hWilcoxon signed rank test was used to compare paired continuous data.iMcNemar test was used to compare paired proportional data.