A Multicenter Case-control Study of Risk Factors for Premature Ejaculation in China's Shaanxi Province

Inclusion Criteria:

• 1. case group

1. 18-64 years old, regular sexual life > 6 months;

2. Self-report of premature ejaculation;

3. Able to complete questionnaires and scale scores independently. 2) control group

4. 18-64 years old, regular sexual life > 6 months;

5. Both partners are satisfied with their sexual life;

6. Able to complete questionnaires and scale scores independently.

Exclusion Criteria:

• 1. case group

1. Those who are unable to have sex due to genital malformation;

2. Patients with serious cardiovascular and cerebrovascular diseases;

3. Severe mental disorders (history of epilepsy, mania, etc.);

4. Have a history of brain trauma;

5. People with a long history of substance abuse. 2) control group

6. Patients with a history of mental illness;

7. Oral selective serotonin (5-ht) reuptake inhibitors, tricyclic antidepressants,triazolidine antidepressants, tramadol and sedatives