# Effects of a smartphone-based stress management program on work performance, sick leave, and intention to leave among nurses during COVID-19 in Vietnam and Thailand: an analysis of secondary outcomes of a randomized controlled trial

**Authors:** Asuka Sakuraya, Thuy Thi Thu Tran, Narisara Sripo, Kazuhiro Watanabe, Kotaro Imamura, Plernpit Boonyamalik, Natsu Sasaki, Thanate Tienthong, Hiroki Asaoka, Mako Iida, Quynh Thuy Nguyen, Nga Thi Nguyen, Thai Son Vu, Thuy Thi Ngo, Tham Thi Luyen, Long Duc Nguyen, Nga Thi Viet Nguyen, Binh Thanh Nguyen, Yutaka Matsuyama, Yukie Takemura, Daisuke Nishi, Akizumi Tsutsumi, Huong Thanh Nguyen, Orawan Kaewboonchoo, Norito Kawakami

PMC · DOI: 10.1093/joccuh/uiaf061 · Journal of Occupational Health · 2025-10-23

## TL;DR

A smartphone-based stress management program improved nurses' job performance and reduced sick leave during the pandemic in Vietnam and Thailand.

## Contribution

First study to show iCBT improves work-related outcomes like performance and sick leave in nurses during a pandemic.

## Key findings

- The program improved on-the-job performance at 3-month follow-up.
- It reduced sick leave days at 6-month follow-up.
- No significant effect on quality of care or intention to leave the profession.

## Abstract

Objectives: The purpose of this secondary analysis of data from a previous randomized controlled trial (RCT) was to investigate whether an internet-based cognitive behavioral therapy (iCBT) stress management program improved work performance, sick leave, and intention to leave among nurses in Vietnam and Thailand during the COVID-19 pandemic.

Methods: Full-time nurses were recruited from hospitals in Vietnam and Thailand. A 2-arm, parallel-group, RCT was conducted. The intervention groups were provided a 7-week self-guided iCBT program. As secondary outcomes, work performance (on-the-job performance and quality of nursing care), sick leave days, and intention to leave the profession and the organization were assessed at baseline and 3-month and 6-month follow-ups in each group.

Results: A total of 1203 participants were randomly allocated to the intervention and the control group. The program significantly improved on-the-job performance at 3-month follow-up (P = .0499), although the effect was nonsignificant at 6-month follow-up; Cohen’s d was 0.16 and 0.04, respectively. The program also significantly reduced sick leave at 6-month follow-up (coefficient = −0.21; 95% CI, −0.36 to −0.07; prevalence ratio 0.81), although the effect at 3 months was nonsignificant. However, the effects of the intervention on the quality of nursing care and the intention to leave the profession or the organization were not significant.

Conclusions: A smartphone-based iCBT stress management program improved on-the-job performance at 3-month follow-up and decreased sick leave days at 6-month follow-up among hospital nurses in Vietnam and Thailand during the COVID-19 pandemic.

Key points:

Previous randomized controlled trials reported the effectiveness of internet-based cognitive behavioral therapy (iCBT) on the mental health of nurses or health care professionals in pandemics such as COVID-19.However, no previous study addressed the effectiveness of iCBT programs on improving work-related outcomes such as on-the-job performance, sick leave, or intention to leave of nurses under such circumstances.This study examined the effect of a 7-week self-guided iCBT program on these outcomes among nurses in Vietnam and Thailand during the COVID-19 pandemic, demonstrating significant effects on improving on-the-job performance and sick leave.Our research findings may help to improve these work-related outcomes among nurses during a pandemic.

Previous randomized controlled trials reported the effectiveness of internet-based cognitive behavioral therapy (iCBT) on the mental health of nurses or health care professionals in pandemics such as COVID-19.

However, no previous study addressed the effectiveness of iCBT programs on improving work-related outcomes such as on-the-job performance, sick leave, or intention to leave of nurses under such circumstances.

This study examined the effect of a 7-week self-guided iCBT program on these outcomes among nurses in Vietnam and Thailand during the COVID-19 pandemic, demonstrating significant effects on improving on-the-job performance and sick leave.

Our research findings may help to improve these work-related outcomes among nurses during a pandemic.

## Linked entities

- **Diseases:** COVID-19 (MONDO:0100096)

## Full-text entities

- **Diseases:** COVID-19 (MESH:D000086382)

## Full text

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## References

41 references — full list in the complete paper: https://tomesphere.com/paper/PMC12638291/full.md

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Source: https://tomesphere.com/paper/PMC12638291