Women who selected "I am MORE LIKELY to get headaches with my period but they also occur at other times of the month" were assigned to the self-reported menstrually-associated migraine (MAM) group unless they also endorsed the MM statement.
Subjects who consumed at least one alcoholic beverage per month were assigned to the drinker category.
In the data analysis, no symptom and the symptom duration time < 1 month was assigned to 0, and the symptom duration time ≥1 month was assigned to 1. Then we calculated the score of total psychosomatic symptoms and six dimensions.
The 15th day of the month was assigned as the day treatment started or ended if that information was missing.
For ranges of frequencies, the mid-value was assigned before conversion, e.g. 2.5 times per month was assigned if the '2 3 per month' category was given.
Since SEER reports only the month of diagnosis, the first day of that month was assigned as the date of diagnosis.
Individuals who answered all four questions positively and had symptoms at least 5 times per month were assigned a questionnaire-based RLS-diagnosis [ 22, 23].
All residences within a given grid in a given month were assigned the modeled pollutant value for that grid for that period.
The first day of this month was assigned as the diagnosis index date for both the breast cancer patient and her randomly selected noncancer control.
In a similar fashion, R0 values for each month were assigned to the 50 geographical coordinates based on the location of the meteorological stations, and kriging was performed in order to smooth out the data.
One month was assigned to TOX for any reversible subjective toxic effect (i.e., does not include objective laboratory measures, e.g., blood count) of grade 3 or higher reported during a cycle.
