Skip to main content

Table 7 Classification of subjects according nutritional status with undernutrition and without undernutrition using observed BMI and predicted BMI using scores derived from factor analysis for foods and nutrients

From: Identification of dietary patterns by factor analysis and study of the relationship with nutritional status of rural adolescents using factor scores

a. Classification results: adolescent boys
BMI Predicted BMI group according to factor scores derived through factor analysis Total
<−2SD ≥ − 2SD
According to BMI n% <−2SD 250 216 466
≥ − 2SD 89 131 220
<−2SD 53.6 46.4 100
≥ − 2SD 40.5 59.5 100
Factor scores derived by factor analysis predicted correctly (55.9%) those who are thin as thin and normal as normal group. Adolescent boys (46.4%), who were originally thin (<−2SD) were predicted as normal and 40.5% who were originally normal were predicted as thin.
b. Classification results: adolescent boys
BMI Predicted BMI group according to factor scores derived through factor analysis Total
<−2SD ≥ − 2SD
According to BMI n% <−2SD 264 268 532
≥ − 2SD 57 100 157
<−2SD 49.6 50.4 100
≥ − 2SD 36.6 63.7 100
  1. Factor scores derived by factor analysis predicted correctly (52.8%) those who are thin as thin and normal as normal group. Adolescent girls (50.4%), who were originally thin (<−2SD) were predicted as normal and 36.3% who were originally normal were predicted as thin.