Table 2.
Summary of content validity and questionnaire format of sleep measures in postpartum women
| Evaluation of content validity (domains assessed by each measure) | ||||||||
|---|---|---|---|---|---|---|---|---|
| Measure | Permission for use | No. of items | Time period evaluated | Sleep quality | Excessive daytime sleepiness | Sleep duration/ efficiency |
Sleep latency | Sleep arousal |
| BIS | Available online | 6 | Past month | X | X | X | X | |
| PSQI | Available online | 18 | Past month | X | X | X | X | X |
| GSDS | Unable to obtain* | 21 | Past week | X | X | X | X | X |
| PSQS | Available through author | 14 | Past 2 weeks | X | X | X | X | |
| ISI | Available online | 7 | Past 2 weeks | X | X | X | X | |
| ESS | Available online | 8 | Recent times | X | ||||
| Athens IS | Upon request from author | 8 | Past month | X | X | X | X | X |
| Sleep SC | Unable to obtain* | 21 | Past month | X | X | X | X | X |
| Measure | Sleep latency after arousal | Chronotype | Sleep-disordered breathing | Subjective restorative feeling | Need for hypnotics | Sleep interference with daytime functioning¥ | Total no. of domains assessed |
|---|---|---|---|---|---|---|---|
| BIS | X | X | X | 7 | |||
| PSQI | X | X | X | 8 | |||
| GSDS | X | 6 | |||||
| PSQS | X | 5 | |||||
| ISI | X | 5 | |||||
| ESS | 1 | ||||||
| Athens IS | X | 6 | |||||
| Sleep SC | X | X | X | X | 9 |
BIS = Bergen insomnia scale; PSQI = Pittsburgh Sleep Quality Index; GSDS = General Sleep Disturbance Scale; PSQS = Postpartum Sleep Quality Scale; ISI = Insomnia Severity Index; ESS = Epworth Sleepiness Scale; Athens IS = Athens Insomnia Scale; SSC=Sleep Symptom Checklist. No monetary charge for above measures available online or through author, when used for noncommercial research purposes.
*Original versions of these measures are not available in their referenced published studies or following online search. Information was extracted based on descriptions provided in the corresponding publications.
¥Includes daytime physical function, infant care, cognitive function, psychosocial distress/affective function, fatigue, psychosocial wellbeing, sexual function.