APOB and Cognitive impairment: As shown in Figures 2, 3, a negative association of NHDL-C with cognitive impairment was observed in inpatients who were over 45 years or female in age and sex subgroups; ApoB was negatively associated with cognitive impairment in all subgroups; higher LDL-C was associated with lower odds of cognitive impairment in females, and higher TG was associated with lower odds of cognitive impairment in inpatients who were below 45 years old.