Literal question
Now I would like to ask you some questions about sexual activity in order to gain a better understanding of how behavior afftects health. Please answer these questions to the best of your knowledge. This information will be completely private; under no circumstances will it be revealed to your partner or anyone else.
Since [round 1], that is in past […] months, have you been sexually active?
Question post text
If answer is 2 > Go to 4 (behavior_c4 - variable name in dataset) or section D (kbd01 - variable name in dataset) if no partner.