Table 4

Description of daytime function [SOS part 4 (daytime function)]
Frequency Percentage
Typical feelings at awakening in the morning
Optimistic 68 26.2
Low energy 68 26.2
Energetic 44 17.0
Refreshed 28 10.8
Irritable 18 6.9
Other 17 6.6
Depressed 16 6.2
Anxious 14 5.4
Confused 4 1.5
Nap behavior
Intentional napping 118 47.4
Unintentional napping 42 16.9
Falling 1–2 times a day asleep or nap during the day 62 24.9
Often dreaming when falling asleep or nap during the day 10 3.9
Feeling more alert and awake after falling asleep or nap 124 49.8
Daytime function
Extreme amount of sleepiness during daytime 40 16.1
Had an accident because of sleepiness or falling asleep 11 4.4
Intense amount of fatigue during the day 42 16.9
Have to close eyes during the day to relax 78 31.3
Impaired daytime functioning because of nighttime sleep disturbances, daytime sleepiness or fatigue 72 27.8
Best function during the day
Early morning 102 39.4
Late morning 83 32.0
Early afternoon 38 14.7
Late afternoon 41 15.8
Early evening 34 13.1
Late evening 18 6.9
During the night 4 1.5
No specific time 35 13.5

Burkhalter et al.

Burkhalter et al. BMC Nephrology 2013 14:220   doi:10.1186/1471-2369-14-220

Open Data