Table 1.

Sexual functioning questions, response options and categorization from the SIAB-P.

Item	SIAB-P question	Response options	Response categories
Intimacy	Have you ever had a date with a boy/man or girl/women and did you ever get physically intimate with another person?	- yes - no	- yes - no
Loss of libido	Were there times in which your sexual desire was reduced?	- sexual desire in accordance with peer group or slight reduction of sexual desire - marked reduction in sexual desire - severe reduction in sexual desire - very severe reduction in sexual desire - increase sexual in desire	- no or slight reduction in sexual desire - marked, severe or very severe loss of libido
Sexual anxiety	Have you been tense or anxious when you’re about to get involved in sexual interactions (kissing, petting, intercourse)?	- not at all or slightly - marked sexual anxiety - severe sexual anxiety - very severe sexual anxiety	- no or slight sexual anxiety - marked, severe or very severe sexual anxiety
Relationship with a partner	Did you have a stable relationship? For how long? How close and stable was the relationship? Were there times in the past when you had no partnership? Did you feel incapable of getting involved in a serious relationship?	- stable, close partner-relationship - stable, close partner-relationship with quite a bit of tension - frequent changes, or a longer period of time without a partner or a fairly detached relationship - very detached relationship with rare contacts; no partner-relationship - no partner relationship	- the same as in response options
Sexual relationship	Did you have a sexual relationship?	- had intercourse - relationship without petting and intercourse or occasional or frequent petting but no intercourse - avoidance of any closer contact with other persons in order to avoid petting and sexual intercourse.	- the same as in response options