title: [Validity of the energy/protein index in the detection of overweight in low income Venezuelan preschoolers].
abstract: The validity of the energy/protein index (EPI) in the detection of overweight was assessed in 163 low income children (four to six years old) from Valencia, Venezuela. Weight, height, arm circumference, and skinfolds were taken. Weight for height (W/H), limb fat area (LFA), and EPI were calculated. All subjects with W/H < or =p10 were considered deficient, with W/H between >p10 and < or =p90 normal, and with W/H and LFA >p90 in excess. Percentile distribution of EPI for age and gender was calculated, regarding below the norm all subjects < or =p10, normal those > p10 and p90, and above the norm those >p90. Validity was assessed through sensibility, specificity, and likelihood ratio. Student's t test and ANOVA were used for group comparisons (p < 0.05). According to the nutritional diagnosis, 27.60% of the children were deficient, 66.88% normal, and 15.52% in excess. According to the EPI, 7.36% of the sample was considered below the norm, 82.20% normal, and 10.44% above the norm. The EPI decreased with age in boys, and in the 6 years old group was significantly higher for girls. Lastly, an EPI above the norm is eleven times more likely to occur in a subject considered in excess than in subjects considered normal. For deficiency, the tests did not meet the expected values.
authors.affiliation: Facultad de Ciencias de la Salud, Universidad de Carabobo, Valencia, Venezuela.
authors.forename: Armando
authors.initials: A
authors.lastname: Sánchez Jaeger
authors.forename: Sara Irene Del Real
authors.initials: SI
authors.lastname: Vargas
authors.forename: Liseti
authors.initials: L
authors.lastname: Solano Rodríguez
authors.forename: Nayka
authors.initials: N
authors.lastname: Díaz
authors.forename: María
authors.initials: M
authors.lastname: Adela Barón
mesh_terms: D001837:Body Weights and Measures; D002648:Child; D002675:Child, Preschool; D004734:Energy Metabolism; D005260:Female; D006801:Humans; D007182:Income; D008297:Male; D044342:Malnutrition / Q000175:diagnosis* / Q000453:epidemiology; D009765:Obesity / Q000175:diagnosis* / Q000453:epidemiology; D050177:Overweight / Q000175:diagnosis / Q000453:epidemiology; D012016:Reference Values; D012680:Sensitivity and Specificity; D012959:Socioeconomic Factors; D014687:Venezuela / Q000453:epidemiology