Vives-Mestres, M, Casanova, A, Hershey, AD, Orr, SL.
Perceived stress and pain severity in individuals with chronic migraine: A longitudinal cohort study using daily prospective diary data.
Headache. 2021; 61: 1245– 1254. https://doi.org/10.111
When headaches occur on half of days of the month or more, with features consistent with migraine for at least 8 days, for more than 3 months, the current ICHD definition of chronic migraine (CM) is met. Individuals with CM have a low frequency of migraine attacks because the attacks last long periods, which makes analysis on migraine attack onset not useful and impractical. For that reason, we aimed to describe the patterns of peak attack severity from day-to- day within individuals with CM and analyze those patterns in relation to perceived stress. Data on 136 participants contributing 8216 migraine days into the analysis showed that 70.6% of participants reported the same peak migraine severity on more than 50% of their headache days: 13.2% reported mild peak severity, 47.1% reported moderate peak severity and 10.3% reported severe peak severity.
The relationship between peak severity and perceived stress was also modeled and adjusted for sex, age, continuous headache, presence of menstrual bleeding, day of the week, and disability. Model results showed that for every one unit increase in perceived stress, the odds of reporting a higher peak severity were 10% higher (adjusted OR [95% CI] = 1.10 [1.07–1.14]). Moreover, the inclusion of individual effects on the model allowed the investigators to assess that there is a substantial amount of variation between individuals in this relationship. Description
Description
The relationship between peak severity and perceived stress was also modeled and adjusted for sex, age, continuous headache, presence of menstrual bleeding, day of the week, and disability. Model results showed that for every one unit increase in perceived stress, the odds of reporting a higher peak severity were 10% higher (adjusted OR [95% CI] = 1.10 [1.07–1.14]). Moreover, the inclusion of individual effects on the model allowed the investigators to assess that there is a substantial amount of variation between individuals in this relationship. Description