Table 1 Description and list of individual questionnaire items for each socio-behavioral category.

Physical Discomfort (0 = lowest frequency, duration, severity; 4 = highest frequency, duration, severity)

   Cramps and/or abdominal pain

   Bloating and/or weight gain

   Breast tenderness and swelling

Exercise (hours per day)

   Participate in vigorous physical activity as part of work, school, home, or leisure time

Sleep Disturbance (0 = statement does not apply at all; 4 = statement always applies)

   Experience repeated awakenings

   Feel exhausted upon waking

   Do not feel well-rested after sleeping

   Fight falling asleep during the day

   Fall asleep at work, school, or activities

General Attraction (0 = not at all; 4 = extremely)

   Feel an attraction or interest toward another person

Social Attraction

   Would be difficult to approach other (reverse-scaled)

   Would not be able to establish a friendly rapport with other (reverse-scaled)

   Other would understand how I feel

   Would enjoy the company of other

Physical Attraction

   Would find other physically attractive

   Other would be sexually appealing

   Would take pleasure in sexual relations with other

Task-oriented Attraction

   Would not get anything accomplished with other (reverse-scaled)

   Would be able to depend on other to get things done

   Other would be fun to work with