Cardiovascular risks between the 2 groups compared: high blood pressure in group ≥ 65 years old was higher than in group < 65 years old (75.16% compared to 52.87%, p < 0.001), smoking rate in group < 65 years old was higher than in group ≥ 65 years old (42.21% compared to 14.24%, p < 0.001), overweight rate in group < 65 years old was much higher than in group ≥ 65 years old (22.93% compared to 9.42%, p < 0.001).