marginally non-significantp=0.058
First, the association between prolonged device use and headache became marginally non-significant (p=0.058), although the OR remained positive (2.01), similar to the complete case analysis (2.27).
First, the association between prolonged device use and headache became marginally non-significant (p=0.058), although the OR remained positive (2.01), similar to the complete case analysis (2.27).
Although the OR comparing prolonged usage with low usage did not reach statistical significance, this likely reflects limited power in the prolonged usage group.