Table 1 Score of St. Mary's hospital sleep questionnaire (Study 2)
Subjective symptom after awake | Placebo | L-serine | P-value | |
|---|---|---|---|---|
Was your Sleep? | light < deep | 3.4 ± 0.8 | 4.6 ± 1.7 | 0.09 |
How many times did you wake up? | time(s) | 2.5 ± 2.0 | 1.9 ± 0.7 | 0.80 |
How well did you sleep last night? | badly < well | 3.1 ± 0.8 | 4.2 ± 1.0 | 0.04 |
How clear-headed did you feel after getting up this morning? | still very drowsy < alert | 2.1 ± 1.0 | 3.1 ± 1.1 | 0.06 |
How satisfied were you with last night's sleep? | unstisfied < satisfied | 2.3 ± 0.7 | 3.3 ± 0.6 | 0.03 |
Were you troubled by waking early and being unable to get off to sleep | no < yes | 1.2 ± 0.4 | 1.1 ± 0.2 | 0.18 |
How much difficulty did you have in getting off to sleep last night? | none or very little < difficult | 1.5 ± 0.3 | 1.2 ± 0.3 | 0.15 |
How long did it take your to fall asleep last night. | mins | 18.4 ± 14.9 | 12.9 ± 9.9 | 0.73 |