Table 2.
Behavioral data by study group and time point of the intention-to-treat sample.
| Clinical value | Sleep intervention (n=66) | Waitlist control (n=66) | |||||
|
|
Pre, mean (SD) | Post, mean (SD) | Follow-up, mean (SD) | Pre, mean (SD) | Post, mean (SD) | Follow-up, mean (SD) | |
| Insomnia Severity Index | 14.80 (3.13) | 11.95 (3.93)a,b | 10.70 (3.37)b,c,d,e | 14.81 (2.93) | 14.88 (4.60) | 14.80 (3.39) | |
| Pittsburgh Sleep Quality Index | 10.31 (2.48) | 9.41 (2.37)a,b | 8.12 (2.43)b,c,d,e | 10.43 (2.58) | 10.64 (2.25) | 10.18 (1.83) | |
| 10-item Perceived Stress Scale | 16.89 (3.91) | 18.17 (3.59) | 17.73 (3.63) | 17.09 (3.65) | 17.84 (3.06) | 17.97 (2.49) | |
| 8-item Patient Health Questionnaire | 11.42 (3.69) | 10.03 (4.52)a,b | 9.01 (3.87)b,c,d,e | 11.56 (3.37) | 11.41 (2.78) | 10.72 (2.97) | |
| 7-item Generalized Anxiety Disorder | 10.89 (4.40) | 8.76 (3.84)a,b | 8.21 (4.25)b,c,d,f | 10.80 (3.89) | 11.27 (3.57) | 11.08 (3.52) | |
| Mindful Attention Awareness Scale | 50.28 (15.38) | 52.83 (15.11)a,e | 54.80 (14.40)b,c,d,e | 50.69 (13.89) | 50.35 (12.28) | 50.83 (11.28) | |
aSignificant difference between pre and post time points.
bP<.001.
cSignificant difference between pre and follow-up time points.
dSignificant difference between post and follow-up time points.
eP<.01.
fP<.05.