Changes in work schedule affect headache frequency among Norwegian nurses: a 3-year-follow-up study

Changing from night work was associated with increased odds of reverting from headache more than once a month to no headache at all (OR 2.77).

• Shifts towards less night work or fewer quick returns were linked to higher odds of experiencing no headaches (OR 2.23 and OR 1.90, respectively).
• A reduction in the number of night shifts (>10) was associated with a decreased risk of developing new headaches (OR 0.39).
• The study involved 1104 Norwegian nurses with a median age of 37 years, predominantly women (90.5%).
• These findings suggest that night work and quick returns may negatively impact headache frequency among nurses.

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