BACKGROUND: Studies before this have found that individuals diagnosed with major depressive disorder (MDD) often experience issues with dyslipidemia. Also, people with MDD suffer from anxiety symptoms. However, few studies have looked into what factors contribute to dyslipidemia in individuals with both MDD and anxiety symptoms. Therefore, our study aimed to understand how common dyslipidemia is and what factors might be connected to it in individuals experiencing their first-episode drug-naive (FEDN) MDD with anxiety symptoms (MDDA).
METHODS: A cumulative sample size of 1718 FEDN MDD patients was recruited. The Hamilton Depression Scale (HAMD), Hamilton Anxiety Scale (HAMA), and Positive and Negative Syndrome Scale (PANSS) positive subscale were the measures for the assessment of patients' mental states. Several metabolic panels were collected, including total cholesterol (TC), high-density lipoprotein cholesterol (HDL-C), triglycerides (TG), low-density lipoprotein cholesterol (LDL-C) and thyroid hormone levels.
RESULTS: The reported incidence of dyslipidemia in MDDA patients was 91.67%, which was significantly above that of MDD patients who did not suffer from anxiety symptoms (85.47%). In comparison with MDDA patients without dyslipidemia, those patients with dyslipidemia had higher body mass index (BMI), systolic blood pressure (SBP) and diastolic blood pressure (DBP), they also had increased levels on the HAMD, HAMA, and PANSS positive subscale. Additionally, greater levels of TC, HDL-C, TG, LDL-C, thyroid stimulating hormone (TSH), and fasting blood glucose (FBG) were found. Furthermore, the combination of HAMD, TSH, SBP and DBP distinguished MDDA patients with dyslipidemia from those without dyslipidemia.
CONCLUSION: Our results suggested an increased incidence of dyslipidemia among MDDA patients. Various blood indicators and hormone levels were independently associated with dyslipidemia in MDDA patients. Furthermore, the combination of these factors may differentiate between MDDA patients with and without dyslipidemia.