[Factors associated with sarcopenia prevalence in the elderly in a community of Dongtai City in 2024].

OBJECTIVE

To explore the related factors of sarcopenia in the elderly in a community of Dongtai City.

METHODS

Based on the National Basic Public Health Service Project, a cross-sectional survey was conducted among 806 community-dwelling elderly aged 65 and over in Dongtai City from April to June 2024. The general data and physical examination data of the elderly in the sarcopenia group and the non-sarcopenia group were compared, and Logistic regression was used for multivariate analysis.

RESULTS

The average age of 806 community elderly was (72.05±5.48) years old, including 327 males (40.57%) and 479 females (59.43%). There were 156 patients with sarcopenia, with a detection rate of 19.35%. In terms of general data, compared with the non-sarcopenia group, the elderly in the sarcopenia group showed the characteristics of advanced age, low married proportion, high non-drinking rate and low exercise frequency(P＜0.05). In terms of general data, compared with the non-sarcopenia group, the elderly in the sarcopenia group showed the characteristics of advanced age, low married proportion, high non-drinking rate and low exercise frequency(P＜0.05). In terms of physical examination data, in addition to body fat percentage, the proportion of low weight (BMI＜18.5) and obesity (BMI≥28.0) in the elderly in the sarcopenia group was higher. Waist circumference ((85.30±7.86)cm vs. (88.53±9.10)cm), hip circumference ((91.73±6.36)cm vs. (95.33±6.51)cm), average thigh circumference ((43.84±3.97)cm vs. (46.34±4.26)cm), muscle mass ((36.80±6.09)kg vs. (42.50±7.55)kg) and body fat mass ((18.93±6.49)kg vs. (20.92±6.70)kg) were significantly lower than those in the non-sarcopenia group(P＜0.05). The result of multivariate regression analysis showed that the result of multivariate regression analysis showed that advanced age (71-75 years old: OR=2.123, 95%CI 1.241-3.630; 76-80 years old: OR=5.056, 95%CI 2.918-8.760; ≥81 years old: OR=7.134, 95%CI 3.841-13.250), exercise ≥3 times/week (OR=0.635, 95%CI 0.411-0.982) and waist circumference (OR=0.958, 95%CI 0.936-0.981) were significantly associated with sarcopenia in the elderly in the community(P＜0.05).

CONCLUSION

Advanced age is associated with an increased risk of sarcopenia in the elderly in this community, while regular exercise is associated with a decreased risk of sarcopenia.