Achieving long-term behavior change maintenance remains a major challenge in occupational health, particularly among professional drivers who face substantial occupational stressors. Bus drivers regularly experience prolonged sitting, irregular shifts, limited rest breaks, and disrupted meal timing. Consequently, these job demands elevate their risk for cardiovascular and metabolic disorders. Periodic occupational screenings identify health risks, but long-term data on habit retention remain scarce. A recent retrospective cohort study in the Asian Pacific Island Nursing Journal addresses this issue by analyzing nearly two decades of checkup data from male bus drivers.

Study Design and Longitudinal Tracking of Transport Workers

The investigators conducted a retrospective cohort study using annual health checkup data collected between 2006 and 2023 from a Japanese bus company. The survival analysis evaluated 717 male bus drivers who entered an active behavior change stage. Exposure was categorized using standard checkup questionnaires grounded in the Transtheoretical Model. Researchers defined time zero as the initial identification of an action or maintenance stage. Kaplan-Meier survival curves estimated the exact duration participants sustained these stages. For physiological evaluations, researchers divided drivers into two cohorts. The sustained group maintained action or maintenance stages for at least 1.5 years. In contrast, the comparison group relapsed to preaction or preparatory stages within twelve months. Researchers assessed physiological parameters using analysis of covariance adjusted for baseline metrics, age, and medication use. Multivariable logistic regression also evaluated key lifestyle behaviors over multi-year follow-up intervals.

High Relapse Rates and the Median Duration of Lifestyle Modifications

The study demonstrated that male drivers typically initiated positive health modifications in middle age, with a cohort mean age of 47.2 years. However, preserving these newly adopted habits proved difficult over time. Specifically, the median retention duration was 362 days, indicating that the typical driver relapsed around the one-year mark. Overall, 566 participants (78.9%) reverted to preaction or preparatory stages during follow-up. Meanwhile, only 151 drivers (21.1%) maintained continuous active stages until study completion. Retention probabilities declined steadily over time. At six months, 57.7% of workers maintained their action or maintenance stage. By one year, the retention rate fell to 44.1%. Survival probabilities dropped further to 33.3% at two years and 23.2% at three years. Therefore, fewer than one in four drivers sustained positive modifications beyond thirty-six months. These findings show that occupational barriers strongly hinder behavioral persistence.

Sustained Behavior Change Maintenance and Metabolic Biomarkers

Despite high relapse rates, drivers who achieved sustained behavior change maintenance gained substantial cardiometabolic benefits. At baseline, the sustained group had slightly lower waist circumference than the comparison group (85.77 cm vs 87.54 cm). Other baseline laboratory parameters and medication use were comparable between groups. Over time, marked physiological differences emerged between the cohorts. At two-year and three-year checkups, sustained drivers showed significantly lower body mass index and smaller waist circumferences. Furthermore, their lipid profiles improved markedly, exhibiting lower triglycerides and higher high-density lipoprotein cholesterol levels. Glycemic regulation also improved, with sustained participants demonstrating significantly lower glycated hemoglobin at three years compared to relapsed drivers. Therefore, maintaining positive habits for 1.5 years or longer delivers meaningful protection against metabolic syndrome and cardiovascular disease. These findings confirm that sustained behavioral efforts generate measurable physiological improvements even within high-stress driving occupations.

Physical Activity, Smoking Cessation, and Behavioral Synergy

The investigation also examined specific lifestyle habits linked to long-term behavioral persistence. Multivariable regression analyses revealed striking differences in daily physical activity and tobacco use between cohorts. Drivers in the sustained group showed significantly higher odds of maintaining regular exercise habits. Their adjusted odds ratio was 3.40 at one year and rose to 8.90 by year two. Furthermore, sustained drivers had higher odds of engaging in daily walking or physical activity, with odds ratios of 2.51 at one year and 5.17 at two years. In addition to physical activity improvements, sustained behavioral commitment was associated with smoking cessation. Sustained drivers had significantly lower odds of smoking at one year (odds ratio 0.36) and three years (odds ratio 0.26). Consequently, these results highlight strong behavioral synergy. When workers maintain one positive health behavior, they are far more likely to adopt and protect other healthy habits.

Clinical Implications for Occupational Medicine and Preventive Care

These findings offer important practical guidance for occupational physicians, general practitioners, and wellness coordinators managing transportation workers. Workplace health programs often emphasize short-term biometric improvements during annual screenings. However, this study demonstrates that clinicians must prioritize long-term behavioral retention. Because behavioral relapse increases sharply after twelve months, preventive programs should deploy targeted re-engagement strategies before the one-year mark. Occupational teams should provide regular follow-up consultations, digital monitoring reminders, and peer support to prevent behavioral decline. Additionally, employers must address occupational obstacles by modifying shift schedules, creating depot exercise spaces, and offering nutritious meal options. In primary care consultations, clinicians should evaluate each patient's behavioral readiness and maintenance stage. By identifying workers at risk of relapse, clinicians can provide timely reinforcement counseling. Ultimately, reducing cardiometabolic disease among drivers requires sustained behavioral support integrated into daily occupational routines.

Summary of Findings and Key Takeaways for Practice

In summary, this nineteen-year cohort study provides valuable insights into health behavior trajectories among male bus drivers. Although most drivers initiate lifestyle changes in midlife, fewer than one-quarter maintain these modifications after three years. Nevertheless, workers who sustain changes for at least 1.5 years achieve meaningful cardiometabolic advantages. These benefits include lower body mass index, reduced waist circumference, favorable lipid profiles, and improved glycated hemoglobin levels. Sustained drivers also report higher exercise participation and lower smoking rates. Consequently, occupational health teams and primary care clinicians must focus on long-term habit maintenance rather than isolated annual metrics. Offering ongoing behavioral counseling and addressing workplace barriers can protect cardiovascular health across high-risk transportation populations.

Frequently Asked Questions

Why do bus drivers face unique challenges in maintaining lifestyle changes?

Bus drivers experience prolonged sedentary periods, rigid scheduling, irregular shift patterns, and limited access to healthy nutrition during duty hours. Additionally, job-related mental stress and chronic sleep disruption interfere with regular exercise routines and dietary discipline. These combined occupational demands accelerate behavioral relapse, making long-term habit maintenance exceptionally difficult without structured organizational support and environmental adaptations.

What metabolic markers improve most with sustained behavior change?

Sustained behavior change for 1.5 years or longer significantly lowers body mass index, reduces waist circumference, and decreases circulating serum triglyceride concentrations. Moreover, it significantly increases high-density lipoprotein cholesterol levels and leads to meaningful reductions in glycated hemoglobin over three years. These collective improvements substantially reduce the long-term risk of developing metabolic syndrome and cardiovascular disease.

How can occupational health programs effectively prevent behavioral relapse?

Occupational wellness programs should provide continuous behavioral counseling rather than relying solely on annual evaluations. Implementing proactive digital check-ins around the six-month and twelve-month marks helps identify early signs of relapse. Furthermore, employers should create supportive depot environments by offering healthy food choices, establishing flexible rest breaks, and organizing structured workplace exercise initiatives.

Disclaimer: This content is for informational and educational purposes only. It is not intended to provide medical advice or to be used for diagnostic or treatment purposes. Refer to the latest local and national guidelines for clinical practice.

References

1. Nakanishi E et al. Maintenance of the Self-Reported Behavior Change Stage Among Male Bus Drivers Using Longitudinal Occupational Health Checkup Data: Retrospective Cohort Study. Asian Pac Isl Nurs J. 2026 Sep 01. doi: 10.2196/93645. PMID: 42679343.
2. Joseph TO, et al. Prevalence of cardiometabolic risk factors among professional male long-distance bus drivers in Lagos, south-west Nigeria: a cross-sectional study. Cardiovasc J Afr. 2018;29(2):106-110.
3. Prochaska JO, Velicer WF. The transtheoretical model of health behavior change. Am J Health Promot. 1997;12(1):38-48.
4. Cassidy CA. Facilitating behavior change. Use of the transtheoretical model in the occupational health setting. AAOHN J. 1997;45(5):239-246.