I M Rea1, S Gillen, E Clarke. 1. Department of Geriatric Medicine, Queen's University of Belfast, Northern Ireland, UK.
Abstract
OBJECTIVE: To measure anthropometric variables of weight, height, body mass index (BMI) and triceps skin fold thickness (TSF) and produce local percentiles for > 90 y old subjects. To assess prevalence of conventional measures of under nutrition (BMI at or below 18.5 kg/m2) or over nutrition (BMI values > 30 kg/m2) in this age group. DESIGN: Community cross-sectional study. SETTING: Belfast, Northern Ireland. SUBJECTS: 238 subjects > 90 y of age who were apparently well, mentally competent and recruited from all areas of Belfast. RESULTS: Mean weight was significantly heavier in male 63.9 (s.d. 9.1) kg compared to female subjects 54.4 (s.d. 11.9) kg (P < 0.0001). Men were significantly taller than women with mean height of 162 (s.d. 5.9) cm compared to 150 (s.d. 6.7) cm in women (P < 0.0001). Increasing age was associated with a fall in weight (P = 0.06 female; P = 0.09 male) and in height for women (P = 0.04). Mean BMI was 24.3 (s.d. 3.0) kg/m2 for men and 24.6 (s.d. 5.4) kg/m2 for women with no sex or age differential. 10% of females had values for BMI < 18.5 kg/m2. 11% of female and 2% of male subjects had BMI values > 30 kg/m2. TSF values were 11.7 (s.d. 4.1) mm in male and 12.3 (s.d. 4.5) mm in female subjects with no age or sex-related difference. CONCLUSIONS: Local percentiles for anthropometric variables are presented for subjects > 90 y. Both BMI and TSF show no sex or age-related difference. Ten percent of females have BMI values consistent with either under nutrition or over nutrition.
OBJECTIVE: To measure anthropometric variables of weight, height, body mass index (BMI) and triceps skin fold thickness (TSF) and produce local percentiles for > 90 y old subjects. To assess prevalence of conventional measures of under nutrition (BMI at or below 18.5 kg/m2) or over nutrition (BMI values > 30 kg/m2) in this age group. DESIGN: Community cross-sectional study. SETTING: Belfast, Northern Ireland. SUBJECTS: 238 subjects > 90 y of age who were apparently well, mentally competent and recruited from all areas of Belfast. RESULTS: Mean weight was significantly heavier in male 63.9 (s.d. 9.1) kg compared to female subjects 54.4 (s.d. 11.9) kg (P < 0.0001). Men were significantly taller than women with mean height of 162 (s.d. 5.9) cm compared to 150 (s.d. 6.7) cm in women (P < 0.0001). Increasing age was associated with a fall in weight (P = 0.06 female; P = 0.09 male) and in height for women (P = 0.04). Mean BMI was 24.3 (s.d. 3.0) kg/m2 for men and 24.6 (s.d. 5.4) kg/m2 for women with no sex or age differential. 10% of females had values for BMI < 18.5 kg/m2. 11% of female and 2% of male subjects had BMI values > 30 kg/m2. TSF values were 11.7 (s.d. 4.1) mm in male and 12.3 (s.d. 4.5) mm in female subjects with no age or sex-related difference. CONCLUSIONS: Local percentiles for anthropometric variables are presented for subjects > 90 y. Both BMI and TSF show no sex or age-related difference. Ten percent of females have BMI values consistent with either under nutrition or over nutrition.
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