Association between previous cataract surgery and cognition among middle-aged and older Chinese: the China health and retirement longitudinal study (CHARLS)

Table 2 Associations between previous cataract surgery and cognition in middle-aged and elderly Chinese (CHARLS 2011–2012)

	β (95% CI)	P
Cataract surgery	-0.647 (-1.244, -0.049)	0.034
Age	-0.166 (-0.182, -0.149)	< 0.001
Sex	0.906 (0.741, 1.070)	< 0.001
Smoking status	-0.013 (-0.034, 0.008)	0.218
Drinking status
Drink more than once a month	ref
Drink but less than once a month	-0.006 (-0.023, 0.001)	0.506
None of these	0.007 (-0.013, 0.026)	0.498
Residence	0.115 (0.099, 0.131)	< 0.001
Education
Primary or below	ref
Middle school	0.187 (0.171, 0.204)	< 0.001
High school	0.167 (0.150, 0.183)	< 0.001
College or above	0.109 (0.09, 0.125)	< 0.001
Diabetes	-0.013 (-0.028, 0.003)	0.124
Hypertension	0.002 (-0.014, 0.018)	0.816
Dyslipidemia	0.810 (0.528, 1.092)	< 0.001

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