ABSTRACT
Objective:To understand the basic nutrition situation of primary and secondary school students in the urban area of Yichun City， and to provide corresponding strategies and measures for the improvement of the nutrition of children and adolescents. Methods:A stratified sampling method was used to select the urban primary and secondary school students in 10 counties （cities， districts） in Yichun City from 2019 to 2020 for physical examinations to assess their nutritional status. Results:Among 8 921 primary and middle school students surveyed， 62（0.69%） were stunted in growth， 735（8.24%） were emaciated， 1 130（12.67%） were overweight， and 662（7.42%） were obese. The weight loss rate of primary school students was the highest （10.54%， 360/3 414）， followed by junior middle school students （7.07%， 214/3 026）， and senior high school students （6.49%， 161/2 481）. The difference was statistically significant （χ2=39.51， P<0.05）. The proportion of unbalanced nutritional status of boys was 35.66% （1 578/4 425）， which was higher than that of girls （22.49%， 1 011/4 496）， and the difference was statistically significant （χ2=187.91， P<0.01）. Conclusion:Both malnutrition and overweight/obesity exist in primary and middle school students in Yichun City. We should pay special attention to boys and lower grade students， and intervene different nutritional problems.
ABSTRACT
To achieve the complete remission (CR), acute leukemia (AL) patient must get through the period of myeloid ablation after chemotherapy that the white blood cell (WBC) count in peripheral blood decreases rapidly. To observe the relationship of WBC count with therapeutic effectiveness after chemotherapy in previously untreated AL, eighty cases of previously untreated acute leukemia who took the first induction chemotherapy course were analyzed. Blood routine was carried out 2 to 3 times every week while the bone marrow pictures on 12th and 20th day after chemotherapy were observed. 80 patients were divided into 3 groups based on the lowest value of WBC count after chemotherapy: <or= 0.4 x 10(9)/L group, (0.4 - 0.9) x 10(9)/L group and > 0.9 x 10(9)/L group. The results showed that the complete remission rates after the first course of chemotherapy were 60 vs 55.6 vs 27.3% respectively in the three groups which WBC counts were <or= 0.4 x 10(9)/L, (0.4 - 0.9) x 10(9)/L and > 0.9 x 10(9)/L. The total efficaciousness rates were 90 vs 92.6 vs 66.7 respectively in the three groups. The efficaciousness rate of the first two groups significantly differed from the third group (P < 0.01). However, no significant difference was shown between the first and second groups. It is concluded that the leukocyte count after the first course of chemotherapy may be an early indicator to predict the efficaciousness of chemotherapy.