Prevalence and Biopsychosocial Factors Associated with Relapse in Patients with First-Episode Schizophrenia in a Clinical Setting in Southern Thailand

Authors

  • Sakuna Kunchamnan Master of Nursing Science Program in Psychiatric and Mental Health Nursing, Faculty of Nursing, Mahidol University, Bangkok 10700, Thailand
  • Atittaya Pornchaikate Au Yeong Department of Mental Health and Psychiatric Nursing, Faculty of Nursing, Mahidol University, Nakhon Pathom 73170, Thailand
  • Acharaporn Seeherunwong Department of Mental Health and Psychiatric Nursing, Faculty of Nursing, Mahidol University, Nakhon Pathom 73170, Thailand
  • Nopporn Vongsirimas Department of Mental Health and Psychiatric Nursing, Faculty of Nursing, Mahidol University, Nakhon Pathom 73170, Thailand

DOI:

https://doi.org/10.33192/smj.v78i6.281451

Keywords:

First-episode schizophrenia, Relapse, Medication adherence, Cognitive insight, Coping strategies, Social support, Substance use

Abstract

Objective: This study aimed to assess the prevalence of relapse among patients with first-episode schizophrenia and identify its associated biopsychosocial factors.

Materials and Methods: This was a cross-sectional study conducted at a major psychiatric hospital in southern Thailand. This study included patients aged 18–59 years diagnosed with schizophrenia within the preceding 3 years. Data were collected using a demographic questionnaire and five standardized instruments. Descriptive statistics and univariate and multivariate logistic regression analyses were performed to identify factors associated with relapse.

Results: A total of 220 patients were included in this study. The prevalence of relapse was 21.8%. The univariate analysis revealed that medication adherence, coping strategies, social support, substance use (p < .01), and cognitive insight (p < .05) were significantly associated with relapse. In the multivariate logistic regression analysis, medication adherence and coping strategies remained independently associated with relapse. Particularly, each one-unit increase in medication adherence was associated with a 71% decrease in the risk of relapse (odds ratio [OR] = 0.29, 95% confidence interval [CI] = 0.12–0.31, p < .01). Similarly, each one-unit increase in the coping strategy score was associated with a 20% decrease in the risk of relapse (OR = 0.80, 95% CI = 0.67–0.94, p < .01).

Conclusion: Higher levels of medication adherence and greater use of coping strategies were associated with a decreased risk of relapse. Healthcare professionals should promote medication adherence and strengthen coping skills among patients with first-episode schizophrenia to enhance long-term stability and successful community functioning.

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Published

01-06-2026

How to Cite

Kunchamnan, S., Pornchaikate Au Yeong, A. ., Seeherunwong, A. ., & Vongsirimas, N. . (2026). Prevalence and Biopsychosocial Factors Associated with Relapse in Patients with First-Episode Schizophrenia in a Clinical Setting in Southern Thailand. Siriraj Medical Journal, 78(6), 425–435. https://doi.org/10.33192/smj.v78i6.281451

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