Skip to main content

Table 3 Item-total correlation analysis

From: Psychometric evaluation of the PROMIS SD-SF-8b instrument in individuals experiencing vasomotor symptoms due to menopause

Item

Baseline

Week 12

Item 1: my sleep was restless

0.748

0.753

Item 2: I was satisfied with my sleep

0.789

0.834

Item 3: my sleep was refreshing

0.731

0.834

Item 4: had difficulty falling asleep

0.529

0.606

Item 5: had trouble staying asleep

0.760

0.819

Item 6: had trouble sleeping

0.812

0.885

Item 7: got enough sleep

0.745

0.795

Item 8: my sleep quality was…

0.865

0.891

  1. Polyserial correlation coefficients were calculated between each item and the total score omitting the item