Comparação de medidas antropométricas de idosos residentes em área urbana no sul do Brasil, segundo sexo e faixa etária

[Screen time, obesity and cardiovascular disease among elderly Brazilians: 2013 and 2019 National Health Surveys]

The scope of this paper was to analyze the association between the time spent watching television (TV) and the presence of obsessive-compulsive disorder (OCD) obesity and obesity associated with cardiovascular diseases (CVD) among elderly Brazilians, according to gender, comparing data from the 2013 and 2019 National Health Surveys (NHS). It involved a cross-sectional study, with data from 23,815 and 43,554 elderly people, respectively, from the 2013 and 2019 NHS. Self-reported TV screen time was categorized into: <3, 3-6, and ≥6 per day. Obesity was assessed by body mass index ≥27 kg/m² and CVD by self-reported medical diagnosis. In 2013, elderly women who watched TV ≥6 hours/day were more likely to have OCD obesity (OR=1.87; 95%CI=1.32;2.64) and obesity associated with CVD (OR=6.30; 95%CI=3.38;11.74). In 2019, elderly women who watched TV between 3-6 hours/day (OR=1.44; 95%CI=1.25;1.65) and ≥6 hours/day (OR=1.55; 95%CI=1.28;1.88) were more likely to have OCD obesity, while the incidence of obesity associated with CVD was higher for ≥6 hours/day (OR=2.13; 95%CI=1.48;3.06). In 2019, men were more likely to have obesity associated with CVD watching TV between 3-6 hours/day (OR=1.76; 95%CI=1.20;2.56) and ≥6 hours/day (OR=2.13; 95%CI=1.27;3.57). The importance of reducing screen time by the elderly is clearly evident.

Body composition and functional performance of older adults

Objectives

To determine if anthropometric variables, body composition, medication and gender are associated with functional performance and to compare these variables between octogenarians with high and low functional performance.

Methods

Observational, cross-sectional study. Weight, height, body mass index (BMI), waist circumference (WC), and waist-to-height ratio (WHtR) were evaluated. Handgrip strength (HGS) was assessed. Participants' body composition was assessed by dual-energy X-ray absorptiometry (DXA) and functional performance by Short Physical Performance Battery (SPPB). A binomial logistic regression was performed.

Results

One hundred and twenty-two octogenarians were included and separated into high and low function groups. The high function group showed lower values of WHtR (mean difference [MD] = 0.047, P = 0.025) and body fat (BF%) (MD = 3.54, P = 0.032) and higher values of apendicular skeletal muscle mass (ALM) (MD = 3.03, P = 0.001), HGS (MD = 6.11, P = 0.001) and SPPB score (MD = 4.20, P = 0.001). Women were more likely to be classified as low function (OR = 3.66, P = 0.002) and males showed 5.21 odds ratio (P = 0.021) of having high functional performance compared to females. Also, each decrease in age and medication use displayed 1.30 (P = 0.007) and 1.26 odds ratio increases (P = 0.008) in high functional performance.

Conclusions

Older males display better functional performance than women, and decrements in age and medications increase the high functional performance odds ratio. Octogenarians with high functional performance displayed lower BF measurements and higher values of muscle mass and strength.

Analysis of anthropometric indicators used in the nutritional assessment of active elderly in the city of Macaé, Rio de Janeiro, Brazil

Introduction: Body composition changes related to aging alter the capacity of predicting risk through anthropometric parameters. Objective: To discuss methodological aspects of anthropometry in active elderly based on associations between Body Mass Index (BMI) and other nutritional indicators. Methods: Cross-sectional study with active elderly from Macaé, Rio de Janeiro, Brazil (2014/2015). Nutritional status was described according to the BMI (Nutritional Screening Initiative, 1994). Linear regression analysis was performed: the outcome variable was BMI and the dependent ones were circumferences of waist, hip, neck, calf, arm and waist-to-hip ratio (WHR). Results: We assessed 173 people (55.5% female; median 71 years old). Calf and neck circumferences and WHR presented low R2 value. Among women, hip (R2=0.825) and waist circumferences (R2=0.729) individually explained much of the variation in BMI; and among men, waist (R2=0.759) and arm circumferences (R2=0.741) performed better. The cut-off points for waist circumference corresponding to the critical BMI value (27 kg/m2) were 87.9 and 96.8 cm, respectively for women and men. In multiple analysis, the association of waist, hip and arm circumferences with BMI remained significant. Conclusion: Circumferences traditionally used to assess adults had higher linear association with BMI than specific indicators for elderly people. The body composition of active elderly can be more similar to adults’ than that of elderly with other profiles. The waist circumference cut-off points established for adults may not be suitable for elderly populations. We suggest testing the cut-off points obtained by this study on other groups of active elderly.

Time-trend in excess weight in Brazilian adults: A systematic review and meta-analysis

BACKGROUND

This review aimed to estimate the time-trend prevalence of excess weight, overweight and obesity in the Brazilian adult population, from the 1970s-2020, through systematic review and meta-analysis (Protocol: CRD42018091002).

METHODS

A search for articles was conducted in the databases MEDLINE, EMBASE, Scopus, and LILACS up to June 2021. Studies that assessed excess weight, overweight and obesity in the adult population were eligible. Two authors selected studies, collected data and assessed the methodological quality of the studies. The primary outcomes were the prevalence of excess weight, overweight, and obesity by sex and period of years. Pooled prevalence and 95% confidence intervals (CIs) were calculated in the meta-analysis of the random effects model. Heterogeneity (I2) was investigated by meta-regression and publication bias was investigated by Egger's test.

RESULTS

A total of 7,938 references were identified in the search strategies, of which eighty-nine studies and nine national surveys, conducted from 1974-2020, were included in the meta-analysis. The pooled prevalence of excess weight in Brazilian adults increased from 33.5% (95% CI: 25.0; 42.6%) in 1974-1990 to 52.5% (95% CI: 47.6; 57.3%) in 2011-2020. The pooled prevalence of overweight in Brazilian adults was 24.6% (95% CI: 18.8; 31.0%) from 1974-1990 and 40.5% (95% CI: 37.0; 43.9%) from 2011-2020. The pooled prevalence of obesity in Brazilian adults increased by 15.0% from 1974-1990 to 2011-2020. The increases were observed for both men and women in almost all periods. The prevalence of excess weight and obesity remained higher among women in all periods.

CONCLUSIONS

A continuous increase in the prevalence of excess weight, overweight and obesity were observed over the years. The prevalence of excess weight affected half of Brazilian adults in the period from 2011-2020 and both sexes.

Body image, nutritional status and quality of life in long-lived older adults

Abstract Objective: To evaluate the body image and nutritional status (NS) of older adults aged 80 and over and its relation with quality of life (QoL). Method: A cross-sectional, quantitative study, with no intervention, using non-probabilistic sampling, was conducted from October 2016 to September 2017 with 103 older individuals aged ≥80 years old from the state of São Paulo. NS was evaluated according to OPAS/SABE; body image was evaluated by the Kakeshita fifteen silhouette scale, and the WHOQoL-bref and WHOQoL-old were used to measure QoL. The Chi-square test was used to verify the association between the studied variables and sex. To compare QoL with nutritional status and body image, the ANOVA Factor test was used. The level of significance was 5% (p<0.05). Results: The majority of the interviewees were female (69.2%) and the average age was 82.75 (±2.98). When comparing the perception of QoL with NS, there was a significant difference (p=0.027) in the self-evaluation of QoL of obese older adults only. The QoL related to body image of both sexes presented a significant difference (p=0.020) in the environmental domain of the WHOQoL-bref in the evaluation of body satisfaction. Conclusion: The body image distortion identified by these older adults did not interfere with their perception of QoL. However, when NS was considered, overweight older adults had a higher perception of QoL.

Body image satisfaction, nutritional status, anthropometric indicators and quality of life among the elderly

Abstract Objective: to determine the prevalence of body image satisfaction in elderly subjects, as well as its relationship with nutritional status, anthropometric indicators and quality of life. Method: a cross-sectional, descriptive and analytical study was carried out with elderly individuals from Primary Care units (Family Health Strategy) from all the health districts of Porto Alegre, in the state of Rio Grande do Sul. The variables studied were: sociodemographic (gender; age; marital status and schooling), anthropometric (weight; height; body mass index; arm, calf, waist and hip circumference; waist-hip ratio and triceps skinfold), nutritional (Mini Nutritional Assessment), and clinical (quality of life; body image satisfaction). The Stunkard Silhouettes Scale, the Mini Nutritional Assessment and the Flanagan quality of life scale were applied. For data analysis, logistic regression (five steps) was performed with the Conditional Backward method. Results: a total of 532 elderly users (68.96 (7.14) years) were evaluated, mostly women (64.8%) who were dissatisfied with their body image (71.7%). The predictors of body image satisfaction were: eutrophic/underweight body mass index, eutrophy/insufficient arm circumference, and higher mean quality of life scores. Conclusion: in general, a low prevalence of body image satisfaction was identified among the elderly. Subjects with lower body mass index, smaller arm circumference measures and better quality of life had a greater chance of being satisfied with their body image.