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Objective To explore the correlation between systemic family dynamics characteristics and adolescent depressive symptoms, and the mediating role of negative life events between them. Methods A cross-sectional study was conducted on 124 adolescent patients diagnosed with depressive disorder according to the international classification of diseases (ICD)-10 criteria at the Psychosomatic Medicine Department of Shanghai East Hospital Affiliated to Tongji University from September 2021 to February 2023. The second edition of the Scale of Systematic Family Dynamics (SSFD), Children's Depression Inventory (CDI), and Adolescent Self-Rating Life Events Checklist (ASLEC) were utilized to evaluate the family dynamics characteristics, depressive symptoms, and negative life events. Canonical correlation analysis was performed to explore the relationships between 4 dimensions of SSFD [family atmosphere (FA), individuation (IN), system logic (SL), illness concept (IC)] and 5 factors of CDI (low self-esteem, negative emotion, anhedonia, inefficiency, interpersonal problem). A mediation effect analysis using Bootstrap test was conducted to analyze the mediating role of negative life events between family dynamics and adolescent depressive symptoms. Results The scores for FA, SL, and IN in SSFD were negatively correlated with the total score of CDI (r=-0.359, -0.256, -0.291, P<0.01), and negatively correlated with the total score of ASLEC too (r=-0.318, -0.371, -0.406, P<0.01). However, a positive correlation was observed between the total scores of ASLEC and CDI (r=0.633, P<0.01). Canonical correlation analysis between the 4 dimensions of SSFD and the 5 factors of CDI revealed one pair of statistically significant canonical variables (U1, V1) with a canonical correlation coefficient of 0.483 (P<0.05). This indicates that the canonical variable U1 of SSFD was primarily influenced by FA, while the canonical variable V1 of CDI was mainly affected by low self-esteem and interpersonal problems. The mediating analysis showed that the effects of FA, IN, and SL scores on CDI total score were all weak (-0.147, -0.117, -0.102, respectively) but statistically significant (P<0.05). The direct effect of IN and SL scores on CDI total score was not statistically significant (P>0.05), while the direct effect of FA score on CDI total score was statistically significant (-0.076, P<0.05). Additionally, the mediating effect of ASLEC between the scores of FA, IN, SL and CDI total score were all significant (-0.071, -0.095, -0.087, respectively) (P<0.05). Conclusions Adolescent depressive symptoms may be influenced by systemic family dynamics characteristics and negative life events. Negative life events mediate the influence of FA, IN, and SL on depressive symptoms. However, the IC is not related to depressive symptoms in adolescents.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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