Compared to boys, girls had higher levels of knowledge at baseline (70% vs. 65%) but increase in knowledge over time was the same among both sexes.
Stúlkur höfðu meiri þekkingu en drengir í upphafi (stúlkur 70% rétt svör, drengir 65%) en þekking jókst jafnmikið hjá stúlkum og drengjum eftir íhlutun.