Fig. 3
From: Using discrete choice experiments to inform the design of complex interventions
Relative strength of preferences for voluntary medical male circumcision service attributes and their variation by region and circumcision status. Dark bars represent the base utility of the attribute. If preferences are significantly different between groups of respondents, these are shown below the base utility bars for significant variation by region (light bar showing utility values in Njombe) and by age (striped bar showing utility values where those aged 21 years or older had significantly different preferences from those aged 18–20 years). *: p ≤ 0.1, **: p < 0.05, ***: p < 0.01