Table 2.
Baseline BDNF, Insomnia Symptom, and Sleep Continuity Profile.
| Total N=87 |
Acupuncture N=50 |
CBT-I N=37 |
|
|---|---|---|---|
|
| |||
| BDNF Levels at Baseline | |||
|
| |||
| Median (ng/ml) | 47.1 | 50.9 | 44.9 |
| Inter-Quartile Range (ng/ml) | 26.0 – 78.6 | 27.6–67.8 | 28.3–69.2 |
|
| |||
| Insomnia Symptom Profile at Baseline | |||
|
| |||
| Years since insomnia onset, mean (SD) | 9.8 (9.9) | 10.0 (10.5) | 9.6 (9.0) |
| ISI total score, mean (SD) | 17.8 (4.2) | 17.5 (4.2) | 18.2 (4.1) |
|
| |||
| Sleep Continuity Profile at Baseline | |||
|
| |||
| Minutes of total sleep time, mean (SD) | 360.0 (71.6) | 362.5 (62.6) | 356.6 (83.0) |
|
| |||
| Minutes of sleep onset latency, mean (SD) | 33.0 (33.6) | 30.4 (30.4) | 36.5 (37.6) |
|
| |||
| Number of awakenings, mean (SD) | 2.6 (1.3) | 2.6 (1.4) | 2.5 (1.2) |
|
| |||
| Minutes awake after sleep onset, mean (SD) | 53.2 (34.8) | 52.2 (32.2) | 54.5 (38.4) |
|
| |||
| Sleep efficiency percentage, mean (SD) | 75.9 (12.1) | 77.3 (9.2) | 74.0 (15.1) |
Notes: BDNF, brain-derived neurotrophic factor; CBT-I, cognitive-behavioral therapy for insomnia; SD, standard deviation; ISI, Insomnia Severity Index