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. Author manuscript; available in PMC: 2020 Nov 1.
Published in final edited form as: Environ Int. 2019 Aug 22;132:105100. doi: 10.1016/j.envint.2019.105100

Figure 4.

Figure 4.

Associations of weather and ambient air pollutants with migraine headaches overall (A and B) and by season (C and D) among participants with migraine in the Greater Boston area, Massachusetts, 2016–2017. We used logistic regression models with generalized estimating equation (GEE), and specified autoregressive correlation structure. Models were adjusted for day of week and a natural cubic spline function of day of year. Models for air pollution (B and D) were additionally adjusted for temperature and relative humidity.