Based on the application of the second generation field medical cabin in the practices,the author points out the advantages of it such as advanced equipment,diversified adaptation,fully equipped element,etc.Meanwhile,the author also puts forward problems and relevant suggestions in extension area,equipment configuration and accessories.The suggestion provides basic theoretical evidence for improving the medical cabin devices.

Objective: To understand the relationship between eye strain and eye health behavior in college students learning at home during the period of COVID-19 epidemic, and to provide a scientific reference for improving the hygiene of using eyes among the college students. Methods: A cross sectional study and stratified cluster sampling was used to select 2 671 college students from 8 colleges in Anhui Province during the March 1st to July 1st in 2020, and an online questionnaire was survey included general information,eye strain,and daily eye health behavior. Results: The prevalence of eye strain in college students was 69.64%. Multivariable Logistic regression analysis showed that eye strain was correlated with gender, myopia, siesta habit, staying up until 2:00 am, and the use of eye liquid, with OR values(95% CI ) were 0.64(0.53-0.76), 1.77(1.42- 2.20 ),0.71(0.59-0.86), 1.39(1.17-1.65), and 2.18(1.71-2.79), respectively. There was no correlation among daily outdoor activity time, daytime reading time and the occurrence of eye strain( P >0.05). Conclusion During the period of COVID-19 epidemic, eye strain among college students is common. The daily eye health behavior is related to the occurrence of eye strain. Under the special learning context, eye care measures should be encouraged specifically.

Objective: To explore the interaction effects and possible sex differences in childhood emotional overeating and polygenic influences on adolescent pubertal timing and tempo. Methods: In March 2016 (T0), all participants were recruited from grades 1 to 3 from two primary school of Bengbu, Anhui Province using cluster sampling, and follow up surveys were conducted once per year (T1, T2, T3). Emotional overeating was assessed at T1 and pubertal development was assessed annually (breast Tanner stage in girls and testicular volume in boys). The nonlinear growth model was used to estimate pubertal timing and tempo. Polygenic risk scores were calculated based on 17 SNPs for early pubertal timing. Hierarchical linear regression was performed to examine the interaction effects between childhood emotional overeating and polygenic risk scores on pubertal timing and tempo. Results: The complete data of 896 children were analyzed, including 373 boys (41.60%) and 523 girls (58.40%). A total of 203 (22.7%) children reported emotional overeating behavior at T1. After adjusting for several variables including early life adversity, delivery mode, and birthweight, only emotional overeating was associated with accelerated pubertal tempo among girls with a high genetic risk (B=0.19, 95%CI=0.07~0.32， P<0.01), although there was no association with pubertal timing (B=0.14, 95%CI=-0.12~0.41，P=0.28). In girls with a low genetic risk and boys, no evidence was found to support interaction effects between childhood emotional overeating and polygenic influences on pubertal timing and tempo (P＞0.05). Conclusion Emotional overeating was associated with a faster pubertal tempo in girls who had a high genetic risk of early pubertal development.

Objective: To evaluate the development trajectory of sugar-sweetened beverage (SSB) intake in childhood, and to explore the influence of different SSB intake patterns on childhood obesity. Methods: In 2016, a follow-up cohort study was carried out in two primary schools in Bengbu, Anhui Province. Three annual follow-ups were conducted in 1 263 children at baseline, and 997 children were included in the final analysis. Parental and student questionnaires were used to obtain basic information related to the children s consumption of SSBs. A group-based trajectory model (GBTM) was applied to classify the development trajectory of SSB intake patterns in childhood. Multiple linear regression analyses were performed to assess the correlation between different SSB intake patterns and childhood obesity. Results: GBTM identified four childhood SSB intake patterns, namely, the "persistently-low group (n=822), “decreasing-after-increasing” group (n=20), “gradually-decreasing” group (n=106), and “increasing” group (n=49). In the decreasing-after-increasing group and the gradually-decreasing group, baseline BMI levels and BMI levels obtained at the three follow-ups were significantly higher than those observed in the persistently-low group (F=6.26, 5.90, 5.99, 5.87, P<0.01). There were sex differences in the association between SSB intake patterns and the children s BMI levels. Among girls, after adjusting for confounding factors, the gradually decreasing group increased by 1.20 kg/m 2(B=1.20，95%CI=0.25-2.15, P=0.01) when compared with the persistently low group at the third follow-up. Among boys, no statistically significant association was found between SSB intake patterns and BMI levels (P>0.05). Conclusion Sex differences were observed with respect to the association between SSB intake patterns and obesity in children. Girls with a higher SSB intake had a significantly increased risk of obesity. Further studies are needed to explore the physiological mechanisms underlying sex differences, to provide the theoretical basis for developing intervention programs to prevent childhood obesity.

Objective To explore the effects of comprehensive psychological nursing intervention on patients with nasopharyngeal carcinoma during radiotherapy, so as to provide references for alleviating their physical and mental pain and to improve their quality of life. Methods From July 2016 to April 2017, a total of 124 cases of nasopharyngeal carcinoma patients treated by radiotherapy from a ClassⅢGrade A hospital were recruited in the research, of which 63 cases from July to December 2016 were assigned as control group and 61 cases from January to April 2017 were assigned as intervention group. Routine nursing care was provided in the control group. On the basis of the routine nursing, individual combined with group intervention was applied in the intervention group according to the psychological and behavioral interventions before and during radiotherapy. The nursing intervention lasted from the beginning of the first radiotherapy till the end of the therapy course in both groups. By the end of the therapy, all the patients were investigated with Distress Thermometer (DT) and the short Quality of Life Scale for Nasopharyngeal Carcinoma with 13 items (QOL-NPC13). Results The scores of DT in the control group and the intervention group were (8.08±0.58) and (5.30±1.11) respectively, and the difference was statistically significant (t=19.316,P<0.001). The scores of body function, psychological spirit, social relationship, toxic side effect and the quality of life of the intervention group were all higher than those of the control group, the differences were statistically significant (Z=-4.674,-7.894,-4.755,-4.842,-8.114; P< 0.001). Conclusions Comprehensive psychological nursing intervention is helpful to relieve the psychological pain and improve the quality of life in patients with nasopharyngeal carcinoma undergoing radiotherapy.