From: Prevalence of primary headache disorders in a population aged 60 years and older in a rural area of Northern China
B
OR (95 % CI)
P value
Age
−0.780
0.458(0.143–1.470)
0.189
Sex – female
1.879
6.548(1.053–40.736)
0.044*
Drinks alcohol
0.391
1.479(0.237–9.219)
0.675