Screening and analysis of influencing factors for comorbidity of chronic glaucoma with depression and anxiety

Table 2 Variable assignment

Factor	Assignment
Presence of comorbid depression and anxiety	Y	Absent = 0, present = 1
Gender	X1	Male = 0, female = 1
Age (years)	X2	< 40 = 1, 40-60 = 2, > 60 = 3
Living environment	X3	Rural = 0, urban = 1
Education level	X4	Above high school = 0, high school or below = 1
Monthly household income (yuan/month)	X5	> 3000 = 0, ≤ 3000 = 1
Disease duration (years)	X6	< 10 = 0, ≥ 10 = 1
Visual field defect stage	X7	Early stage = 0, moderate stage = 1, advanced stage = 2
Best corrected visual acuity	X8	Enter actual value