*Percentages represent number of HIV infected individuals of respective sex position meeting marital status and circumcision condition.
† R – Receptive
‡ D – Dual
‖ I – Insertive
The magnitude of the confidence intervals is largely a function of the varying subgroup, sizes; the smaller the group the larger the standard error and therefore the confidence interval. Non-overlapping confidence intervals between two groups indicate a difference in their percentages that is significant at the 0.05 level. Large absolute differences found here, even those that do not achieve significance at the 0.05 level, seem worth noting as possibly important trends found in this sample.