Trazodone on NREM Sleep Stage Ⅲ in Depressed Insomniac Co-morbid Patients

Monitoring sleep structure staging through Polysomnography（PSG）:

W period (awake period): Refers to the time when one has not entered a sleep state； N1 stage (non rapid eye movement stage 1): light sleep stage, accounting for about 5-10%； N2 stage (non rapid eye movement stage 2): The main part of sleep, accounting for about 50%； N3 stage (non rapid eye movement stage 3): Deep sleep stage, accounting for about 20%, is crucial for memory consolidation and recovery； R phase (rapid eye movement phase): related to dreams, accounting for about 20-25%.

The 17 item Hamilton Depression Scale (HAMD-17) evaluates the severity of depression and treatment outcomes in patients. Composed of 17 items, ranging from 7 to 13 points, it is classified as mild depression; 14-19 points are classified as moderate depression; ≥ 20 points is classified as severe or above.

Zong's Self rating Depression Scale (SDS): It can intuitively reflect the subjective feelings of depressed patients and their symptom changes during treatment. Composed of 20 items, the severity is rated on a 4-point scale from 1 to 4, with 53-62 indicating mild depression, 63-72 indicating moderate depression, and ≥ 72 indicating severe depression.

The Pittsburgh Sleep Quality Index (PSQI) evaluates a patient's sleep quality over the past month, including sleep outcomes and duration. There are a total of 18 items and 7 dimensions, each item is rated on a 4-point scale from 0 to 3. The higher the score, the worse the sleep quality.

The Athens Insomnia Scale (AIS) can be used as a subjective evaluation of insomnia in patients. Composed of 8 items, the severity is evaluated using a 4-point scale from 0 to 3, with a total score range of 0 to 24 points. The higher the score, the worse the sleep quality.

The Antidepressant Side Effect Checklist (ASEC) evaluates the adverse reactions of patients after using antidepressants, including physical fatigue, dizziness, headache, sleep disturbances, erectile dysfunction, palpitations, tremors, sweating, dry mouth, constipation, urinary disorders, drowsiness, sexual dysfunction, and other symptoms. Composed of 21 items, the severity is evaluated using a 4-point scale from 0 to 3, with higher scores indicating more severe side effects. evaluates the adverse reactions of patients after using antidepressants, including physical fatigue, dizziness, headache, sleep disturbances, erectile dysfunction, palpitations, tremors, sweating, dry mouth, constipation, urinary disorders, drowsiness, sexual dysfunction, and other symptoms. Composed of 21 items, the severity is evaluated using a 4-point scale from 0 to 3, with higher scores indicating more severe side effects.

Drug Dependence Scale (DDS) used to identify the degree of drug use dependence. This scale adopts a 4-point rating system, with higher scores indicating higher levels of drug dependence.