Abstract

Overview

This study investigates the preference for mobile phone use on specific ear sides among children and adults in Japan.

Findings

• Children primarily use their dominant hand's corresponding ear, with a significant association found in talk time per call.
• Adults show a preference to use the left ear, especially notable within specific age groups and work-related mobile usage.
• Statistical analysis included logistic regression to assess the odds ratios and confidence intervals for various factors.

Conclusion

The study suggests a pattern in ear side preference among Japanese mobile phone users, with potential implications for future epidemiological studies. Consideration of these usage trends could enhance understanding of mobile phone impacts on health.