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Table 3 MOS Sleep-R standard and acute form item score means and standard deviations

From: The development and validation of a revised version of the Medical Outcomes Study Sleep Scale (MOS Sleep-R)

Item Number

Abbreviated Content

Parent subscale

Standard Form

Acute Form

n

Mean

SD

n

Mean

SD

1a

Time to fall asleep

Disturbance

2020

3.86

1.29

2015

3.90

1.31

2

Average hours of sleep

Quantity

2019

6.87

1.88

2025

6.89

2.07

2b

Sleep quantity (optimal/non-optimal)

Optimal Quantity

2008

0.47

0.50

2008

0.52

0.50

3a

Sleep was not quiet

Disturbance

2017

3.61

1.16

2020

3.64

1.23

4a, c

Enough sleep to feel rested on waking

Adequacy

2018

3.23

1.08

2020

3.19

1.18

5a, c

Awaken short of breath or with a headache

Shortness of breath/headache

2009

4.56

0.85

2021

4.55

0.89

6a

Feel drowsy/sleepy during the day

Somnolence

2019

3.42

1.05

2022

3.44

1.16

7a, c

Trouble falling asleep

Disturbance

2021

3.77

1.22

2024

3.83

1.29

8a, c

Trouble falling asleep again after awakening

Disturbance

2012

3.89

1.11

2024

3.96

1.18

9a, c

Trouble staying awake during the day

Somnolence

2016

4.14

0.95

2023

4.14

1.02

10

Snoring

Snoring

1992

3.68

1.32

2002

3.78

1.26

11

Take naps during the day

Somnolence

2013

3.90

1.14

2022

3.98

1.14

12a, c

Get needed amount of sleep

Adequacy

2018

3.20

1.15

2021

3.21

1.24

  1. a Item included in the scoring of the 9-item Sleep Problem Index (SPI-II)
  2. b Scored as optimal (7–9 h, inclusive) or non-optimal (< 7 or > 9 h), where optimal = 1 and non-optimal = 0
  3. c Item included in the scoring of the 6-item Sleep Problem Index (SPI-I)