[Study of weight/height correlation to identify mild protein-energy malnutrition children 9 years old].

This study was performed during April through July, 1987 in Beijing. Classified by international reference of weight for height, a sample of 292 children, 9-yrs of age from five primary schools in BJ. The main conclusions were: compared with control groups, the value of PWC 170 of MPEM groups was significantly lower, so were the anthropometric indicators. The values of mid-arm circumference showed no significant difference between the sexual groups, but there was very significant difference between the MPEM and control groups. The value of PWC170 of boys was significantly higher than that of girls. Hemoglobin mean values were within the normal range and no significant differences were found in all groups. This meant that the differences of PWC170 of groups were not due to anemia. Transferrin mean value was significantly lower in MPEM than in control groups in girls. The heart rates, during testing, were significantly higher in MPEM than in control groups. This difference was taken to be evidence that work performance was poorer in MPEM than in controls.