Poster Abstract| Volume 48, ISSUE 7, SUPPLEMENT , S37-S38, July 2016

Does Eating Dinner Late Relate to Other Unhealthy Behaviors? Study on Japanese Drivers in a Courier Company


      Habitually eating late dinners is considered unhealthy as it may cause other unhealthy behaviors; therefore, we examine the relationship between eating late dinners and health-related behaviors among Japanese workers.

      Design, Setting, and Participants

      In 2015, we conducted a cross-sectional survey on 1521 Japanese drivers (1432 men, 89 women) working at a courier company.

      Outcome Measures and Analysis

      We compared the demographic, lifestyle-related (e.g., eating dinner within two hours before sleeping, skipping breakfast, sleeping patterns, smoking, alcohol consumption), and health-checkup information (e.g., body mass index, blood sugar, blood pressure) of drivers who ate late dinners at least three days per week (≥3 days) and those who ate late dinners less than three days per week (<3 days) using chi-square tests.


      The ≥3 days group comprised more men, individuals in their forties, and married and overtime workers. there were no differences in health checkup indexes between the two groups. However, more drivers in the ≥3 days group drank alcohol at night everyday (35.4% vs 23.9%, p < 0.001), skipped breakfast (44.2% vs 39.1%, p = 0.05), ate hurriedly (36.2% vs 22.1%, p < 0.001), and did not sleep well (38.2% vs 19.9%, p < 0.001) compared to the <3 days group.

      Conclusions and Implications

      Considering that eating late dinners co-occurred with other health-risk behaviors, interventions to change dinnertime must be implemented in order to encourage workers to eat breakfasts regularly. This may also result in reduced overtime work, implying that successful behavior change will involve considering company policies.