Table 4.

Medians (Mdn) and ranges (RG) or means (M) and standard deviations (SD) of sleep diary outcomes at the before intervention (T1), after intervention (T2), and 6-month follow-up (T3) phases in the total sample and separately among the participants of the different interventions

Sleep Diary	Total sample (n = 54)	Group-based CBT-I (n = 20)	Self-help-based CBT-I (n = 17)	Sleep hygiene education (n = 17)
SOL (min), Mdn (RG)a
T1	22.7 (4.3 − 74.6)	20.0 (4.3 − 74.6)	20.0 (7.9 − 57.5)	28.9 (6.9 − 60.7)
T2	21.9 (3.6 − 73.9)	22.0 (5.0 − 64.6)	23.4 (3.6 − 73.9)	19.4 (6.6 − 73.2)
T3	20.3 (3.9 − 93.6)	18.4 (3.9 − 64.6)	22.0 (6.8 − 76.4)	20.7 (4.9 − 93.6)
WASO (min), Mdn (RG)b
T1	19.6 (0 − 147.1)	20.4 (0.1 − 147.1)	15.0 (1.6 − 55.4)	23.6 (0 − 98.1)
T2	22.9 (0 − 103.8)	24.8 (0 − 84.8)	22.3 (0 − 63.9)	23.6 (0 − 103.8)
T3	21.4 (0 − 126.1)	35.4 (0 − 126.1)	22.5 (1.1 − 49.3)	14.7 (0 − 99.5)
TST (h), M (SD)c
T1	7.0 (0.9)	6.7 (0.8)	7.2 (0.8)	7.2 (1.1)
T2	7.1 (1.0)	6.9 (0.7)	7.4 (1.0)	7.0 (1.3)
T3	7.2 (1.0)	7.1 (0.8)	7.1 (0.9)	7.4 (1.2)
SE (%), Mdn (RG)d
T1	89.8 (66.6 − 97.8)	90.5 (66.6 − 96.0)	90.0 (78.5 − 96.9)	87.5 (76.2 − 97.8)
T2	89.4 (69.6 − 98.5)	90.3 (73.8 − 96.6)	91.7 (79.8 − 98.5)	88.6 (69.6 − 98.5)
T3	89.5 (73.1 − 98.3)	88.7 (73.1 − 96.0)	89.2 (76.7 − 96.0)	91.3 (79.0 − 98.3)
SPM, Mdn (RG)e
T1	7.1 (0 − 100)	15.7 (0 − 100)	21.4 (0 − 100)	0 (0 − 100)
T2	7.1 (0 − 100)	0 (0 − 100)	7.1 (0 − 100)	0 (0 − 100)
T3	0 (0 − 100)	0 (0 − 100)	7.1 (0 − 100)	0 (0 − 100)
Restedness, M (SD)f
T1	2.8 (0.5)	2.9 (0.4)	2.7 (0.5)	2.9 (0.6)
T2	2.7 (0.5)	2.7 (0.5)	2.6 (0.5)	2.8 (0.6)
T3	2.6 (0.5)	2.7 (0.5)	2.6 (0.5)	2.6 (0.4)
Recovery, M (SD)g
T1	2.7 (0.7)	2.7 (0.6)	2.6 (0.6)	2.7 (0.8)
T2	2.7 (0.7)	2.8 (0.6)	2.6 (0.8)	2.8 (0.6)
T3	2.5 (0.8)	2.6 (0.8)	2.3 (0.9)	2.6 (0.7)

^aSleep-onset latency

^bWake after sleep onset

^cTotal sleep time

^dSleep effiency

^eSleep-promoting medication (% of nights)

^fRestedness after sleep period 1(good)−5(poor)

^gRecovery after a shift 1 (well)–5(poorly)