Journal of affective disorders · 2026
Transitions in depressive symptom states among adults with subthreshold depression: Associations with lifetime trauma exposure and combined lifestyle in a multistate Markov study.
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Song Shuaixing, Zhang Huimin, Shi Guangduoji, Wen Chengxi, Zhuang Xiaoxin, Guo Lan, Liu Yifeng, Liao Yuhua, Wang Wanxin, Li Xiuwen, Hao Jiejing, Dri Christine E, McIntyre Roger S, Han Xue, Lu Ciyong
Аннотация
BACKGROUND: Subthreshold depression is common, but whether lifetime trauma exposure and combined lifestyle are differentially associated with symptom transitions remains unclear.
METHODS: We analyzed a prospective community cohort in Shenzhen, China, of adults aged 18-65 years with a Patient Health Questionnaire-9 (PHQ-9) score ≥ 5 and no depressive disorder at baseline. Depressive symptom states (Normal, Mild, and Moderate/Severe) were assessed repeatedly over 36 months. Continuous-time multi-state Markov models estimated transition intensities, probabilities, and hazard ratios (HRs) for lifetime trauma exposure and a five-component combined lifestyle score, adjusting for demographic, socioeconomic, and health-related covariates.
RESULTS: Among 2361 participants (mean age, 37.30 years; 61.9% women), recovery transitions were more frequent than worsening transitions. The monthly Mild-to-Normal intensity was 0.131 (95% CI, 0.100-0.171), 2.47 times the Mild-to-Moderate/Severe intensity; Moderate/Severe-to-Mild was highest (0.205; 95% CI, 0.158-0.272). Lifetime trauma exposure was associated with lower Mild-to-Normal (HR, 0.54; 95% CI, 0.42-0.69) and Moderate/Severe-to-Mild rates (HR, 0.52; 95% CI, 0.41-0.65). Unfavorable lifestyle was associated with a lower Mild-to-Normal rate (HR, 0.70; 95% CI, 0.53-0.92) and a higher Mild-to-Moderate/Severe rate (HR, 1.60; 95% CI, 1.13-2.25). Those with both exposures had the lowest Mild-to-Normal rate (HR, 0.39; 95% CI, 0.26-0.59) and a higher Mild-to-Moderate/Severe rate (HR, 1.69; 95% CI, 1.05-2.73).
CONCLUSIONS: Lifetime trauma exposure was associated with lower recovery rates, whereas an unfavorable lifestyle was associated with lower recovery and higher worsening rates. These associations may inform trauma-informed assessment and lifestyle support for adults with subthreshold depression.
METHODS: We analyzed a prospective community cohort in Shenzhen, China, of adults aged 18-65 years with a Patient Health Questionnaire-9 (PHQ-9) score ≥ 5 and no depressive disorder at baseline. Depressive symptom states (Normal, Mild, and Moderate/Severe) were assessed repeatedly over 36 months. Continuous-time multi-state Markov models estimated transition intensities, probabilities, and hazard ratios (HRs) for lifetime trauma exposure and a five-component combined lifestyle score, adjusting for demographic, socioeconomic, and health-related covariates.
RESULTS: Among 2361 participants (mean age, 37.30 years; 61.9% women), recovery transitions were more frequent than worsening transitions. The monthly Mild-to-Normal intensity was 0.131 (95% CI, 0.100-0.171), 2.47 times the Mild-to-Moderate/Severe intensity; Moderate/Severe-to-Mild was highest (0.205; 95% CI, 0.158-0.272). Lifetime trauma exposure was associated with lower Mild-to-Normal (HR, 0.54; 95% CI, 0.42-0.69) and Moderate/Severe-to-Mild rates (HR, 0.52; 95% CI, 0.41-0.65). Unfavorable lifestyle was associated with a lower Mild-to-Normal rate (HR, 0.70; 95% CI, 0.53-0.92) and a higher Mild-to-Moderate/Severe rate (HR, 1.60; 95% CI, 1.13-2.25). Those with both exposures had the lowest Mild-to-Normal rate (HR, 0.39; 95% CI, 0.26-0.59) and a higher Mild-to-Moderate/Severe rate (HR, 1.69; 95% CI, 1.05-2.73).
CONCLUSIONS: Lifetime trauma exposure was associated with lower recovery rates, whereas an unfavorable lifestyle was associated with lower recovery and higher worsening rates. These associations may inform trauma-informed assessment and lifestyle support for adults with subthreshold depression.