Table 5.
Napping Questions
| Category | Study | Question Wording [Response Scale] | Event Definition | Context | Timeframe |
|---|---|---|---|---|---|
| Naps | Hispanic Community Health Study/Study of Latinos | During a usual week, how many times do you nap for 5 minutes or more? [none; 1 or 2 times; 3 or 4 times; 5 or more times] | Nap frequency (defined as 5 mins) | Usual week | |
| Naps | National Social Life, Health, and Aging Project (NSHAP) | During the past week, on how many days did you nap for 5 minutes or more? [never; 1 or 2 days; 3 or 4 days; 5 or more days] | Nap frequency (defined as 5 mins) | Past week | |
| Naps | National Social Life, Health, and Aging Project (NSHAP) | During the past week, on how many days did you nap for an hour or two? [never; 1 or 2 days; 3 or 4 days; 5 or more days] | Nap frequency (defined as 1–2 hours) | Past week | |
| Naps | Sleep Disorders Questionnaire | How many daytime naps (asleep for 5 minutes or more) do you take on an average working day? [1.) None 2.) One 3.) Two 4.) Three or four 5.) Five or more] | Nap frequency minutes (defined as 5 minutes or longer) | Working day | |
| Naps | Basic Nordic Sleep Questionnaire (BNSQ) | How often do you sleep naps at daytime? [1: never or less than once per week; 2: less than once per week; 3: on 1–2 days per week; 4: on 3–5 days per week; 5: daily or almost daily] | Frequency of any nap | Per week | |
| Naps | Basic Nordic Sleep Questionnaire (BNSQ) | If you sleep a nap, how long does it last for? My naps usually last for about [HH:MM] | Duration of nap | ||
| Naps | Multi-Ethnic Study of Atherosclerosis (MESA) | How often do you “make time” in your schedule for a regular nap or “siesta” in the afternoon? [Never or rarely; Sometimes; Often; Every day or almost every day] | Frequency of any nap | ||
| Naps | Multi-Ethnic Study of Atherosclerosis (MESA) | When you do nap in the afternoon, how long do you sleep? [HH:MM] | Duration of nap | ||
| Naps | Study of Osteoporotic Fracture | Do you take naps regularly? [Yes; No; Don’t know] | Frequency of any nap | ||
| Naps | Study of Osteoporotic Fractures | How many days per week do you usually nap? [___] | Frequency of any nap.................................................................... | Per week | |
| Naps | Study of Osteoporotic Fractures | On average, how many hours do you nap each time? [a) Less than 1 hour; b) At least 1 hour but no more than 2 hours; c) More than 2 hours] | Duration of nap | ||
| Naps | Women’s Health Initiative | Did you nap during the day? [Yes; No] | Frequency of any nap |
Notes: A blank cell indicates that this component is not present in the question. The sentence case (e.g., all capitals) is displayed as represented on the survey.