highly significantp < .001
The difference in incidence rates between gender was highly significant, (Z = 6.81, p < .001): 11.3% of the females but only 1.5% of the males had reported frequent headaches at T3.
The difference in incidence rates between gender was highly significant, (Z = 6.81, p < .001): 11.3% of the females but only 1.5% of the males had reported frequent headaches at T3.