Objective To investigate the lifestyles of internet addiction disorders and explore the relationship between lifestyles and internet addiction among Chinese adolescents.Methods In this cross-sectional stratified cluster sampling study,Demographic Information Questionnaire,Chinese Adolescent Lifestyles Scale (CALS)and Young's Internet Addiction Test were applied.Results (1) Adolescents with internet addiction were 275,accounting for 11.20％.Boys(15.45％) addicted the internet more than girls(7.48％).The prevalence rate of IAD was higher in students from urban(13.55％) than that in students from rural area(9.67％).The ratio of IAD was the highest in junior school students (14.01％),the second in university students (13.84％),the third in senior high school students(9.66％),and the lowest in primary school students(7.67％) (P＜0.01).(2) The internet addicts scored significantly lower on sleep,study habits,physical exercise,interpersonal relationship and coping style,compared to the normal group(P＜0.01).(3) Sleep status,study habits,physical exercise,interpersonal relationship and coping style were negatively correlated with internet addiction (r=-0.193,r=-0.319,r=-0.175,r=-0.225,r=-0.105,P＜0.01).(4)Multiple logistic regression analysis indicated learning habits and interpersonal relationship had negative predictive effects on internet addiction; whereas,the coping style showed a weak positive prediction effect on Internet addiction.Conclusion Internet addict teenagers have poor lifestyles which should be suggested to start the good behavior habit and insist on a healthy lifestyle to prevent the internet addiction disorder.

Objective To investigate the impacting factors on the professional identity of railway young workers and the relationship of the professional identity and subjective well-being.Methods The sample consisting of 5 762 young workers was selected from railway enterprises by stratified and random sampling according to the proportion.Occupational professional identity Scale and Index of Well-being,Index of General Affect Scale were used.The affect of the variable,such as sex,age,working years,educational background and income on professional identity were studied.Moreover,the relationship between professional identity and subjective well-being was reported.Results (1) Professional identity ascended witb the increase of ages,and there was significance between three groups(F=6.667,P＜0.05).(2)Professional identity ascended with the increase of length of service (F=5.147,P＜0.01),but it dropped at the point of 9-12 years.(3) The professional identity of workers with bachelor degree was higher than that with junior college education background.and there was significance between three groups (F=3.538,P＜0.05).(4)The workers who had more than 3 500 RMB monthly salary was regarded on the top in professional identity,while those whose monthly salary were under 2 500 RMB was in the lowest level (F=42.275,P＜0.01).(5)The result of linear regression indicated that the degree of professional identity can forecast the degree of subjective well-being(R =0.534,P＜0.01).Conclusion The professional identity of railway young works was affected by their ages,the length of service,the educational degree and salary,The professional identity can forecast subjective well-being.

Objective To develop and test the reliability and validity of the dual-systems of self-control scale for children (DSSCSC).Methods The scale was developed based on previous studies and the theoretical framework of the dual system.Totally 1493 families from 5 provinces were recruited.Participants were asked to complete the DSSCSC.Item analysis was conducted to identify valid items.Then the construct validity of the scale was tested through exploratory and confirmatory factor analysis(EFA & CFA).Finally the reliability and criterion validity of the scale was examined.Results The scale was consisted of 23 items with 5 factors-planning,impulsivity,distractibility,persistence,and poor delay of gratification.They explained 50.46％ of the total variance.Besides,the CFA resuhs demonstrated a satisfactory construct validity of the scale (RMSEA =0.044,NFI =0.95,NNFI=0.97,CFI=0.97).The scores of DSSCSC and its subscales were significantly correlated with the TSCRS scores.The Cronbach' s α coefficients of the total scale was 0.855,and 5 subscales were 0.813,0.803,0.582,0.608,and 0.620 respectively.Conclusion The DSSCSC with 5 factors has a good reliability and validity,demonstrating it a valid tool to measure the children' s self-control in China.

ObjectiveTo revise and test the reliability and validity of the Chinese vision of the Basic Needs Satisfaction in General Scale (BNSG-S).MethodsTotally 6366 youth workers from 5 organizations were recruited with stratified sampling method.Participants were asked to complete the Chinese vision of BNSG-S.Item analysis was conducted to identify valid items and revise the scale.Then the construct validity of the revised scale was tested through exploratory and confirmatory factor analysis ( EFA & CFA).The criterion validity was tested with the Index of Well-being Scale.Finally the reliability of the scale was examined.ResultsThe revised scale consists of 15 items with 4 factors- satisfied state of autonomy need,blocked state of autonomy need,satisfied state of relatedness need,blocked state of relatedness need.The four factors explained 63.95％ of the total variance.Besides,the CFA results demonstrated a satisfactory construct validity of the scale ( RMSEA =0.056,NFI =0.97,NNFI =0.96,CFI =0.97).The correlation coefficients between the scale and the Index of Well-being Scale was 0.50 (P＜0.01 ) and each factor was significantly correlated to the Index of Well-being Scale.The Cronbach's α coefficients of the Chinese vision of BNSG-S was 0.76,and those of its 4 factors were 0.80,0.67,0.83and 0.80 respectively.ConclusionThe Chinese vision of BNSG-S with 4 factors has good reliability and validity,demonstrating it a valid tool to measure Chinese basic needs satisfaction.

Objective To explore the current situation of basic psychological needs satisfaction (BPNS) and the relationship between index of well-being and BPNS among young workers in China.Methods The samples consisting of 5972 young workers were selected by stratified and random sampling according to the proportion.The Chinese vision of the Basic Needs Satisfaction in General Scale and the Index of Well-being Scale were used.Results The overall situation of BPNS of young workers (4.36 ± 0.71) was good,satisfied state of relatedness need (SSRN,4.70 ± 1.05) was the highest,satisfied state of autonomy need (SSAN,3.96 ± 1.21) and blocked state of autonomy need (BSAN,4.08 ± 1.17) were lower,blocked state of relatedness need (BSRN,3.20 ± 1.26) was the lowest; education and income had interaction on SSRN (F0.05(6.5948) =4.068,P ＜ 0.01)while there was no difference between gender on all of the dimensions.Pearson correlation analysis showed that all the dimensions of BPNS were significantly related to the index of well-being;and linear regression analysis showed that SSAN,SSRN and BSAN could forecast the index of well-being (adjR2 =0.339),β =0.457,0.186,-0.102 respectively.Conclusion The overall situation of BPNS of young workers is good ; and adjustment of SSAN,SSRN and BSAN could improve the index of well-being of young workers.

Objective To develop a father involvement scale and test the reliability and validity.Methods The scale was developed based on previous studies and depth interviews with more than 20 fathers.Totally 1565 families from 3 provinces were recruited.Item analysis was conducted to identify valid items.Then the construct validity of the scale was tested by exploratory and confirmatory factor analysis (EFA & CFA).Finally the reliability and criterion validity of the scale was examined.Results The scale was consisted of 8 factors wihch were involvement attitude,activities and playing,accompany and taking care of children,attentiveness,discipline and school encouragement,economic support,protection,support mother.They explained 59.94％ of the total variance.Besides,the CFA results demonstrated a satisfactory construct validity of the scale (RMSEA =0.05,NFI =0.95,NNFI =0.96,CFI =0.97).The Cronbach(')s α coefficients of the scale was 0.897,and those of its 8 were 0.828,0.788,0.764,0.781,0.671,0.754,0.528 and 0.693 respectively.Conclusion The Father Involvement Scale with 8 factors has a good reliability and validity,demonstrating it a valid tool to measure father involvement in China.

Objective To explore the expression of glutathione-S-transferase-π(GST-π),P-glycoprotein (P-gp),topoisomerase Ⅱ (Topo Ⅱ) and thymidylate synthase (TS) in gastric adenocarcinoma tissues and the clinical significance.Methods Envision method of immunohistochemistry was used to detect the expression of GST-π,P-gp,Topo Ⅱ and TS in sample of 64 gastric adenocarcinoma tissues and 12 normal gastric mucosas,and their corresponding clinical data were comprehensive analyzed.Results The expression positive rates of GST-π,P-gp,Topo Ⅱand TS were respectively 76.6 ％(49/64),64.1％ (41/64),84.4 ％ (50/64) and 53.1％ (34/64),that were all higher than in gastric mucosa [8.3 ％ (1/12),8.3 ％(1/12),16.7 ％ (2/12),0],the differences were statistically significant respectively (P ＜ 0.01).Their positive expression rates were closely relevant to the degree of differentiation (P ＜ 0.05),but not to the patients' gender,age,tumour size,clinical staging,invasive depth and lymph node metastasis (P ＞ 0.05).The expressions of GST-π,P-gp and TS in high and middle differentiation adenocarcinoma were high.er than in low differentiation,but the expression of Topo Ⅱ in high and middle differentiation adenocarcinoma was lower than in low differentiation (P ＜ 0.05).Conclusion GST-π,P-gp,Topo Ⅱ and TS are over-expressed in gastric adenocarcinoma,which is related to the multidrug resistance of gastric adenocarcinoma.The joint detection of the expression of GST-π,P-gp,Topo Ⅱ and TS in gastric adenocarcinoma can be looked as an important symbol for guiding its chemotherapy drug and prognosis.

Objective To investigate the incidence of attention deficit hyperactivity disorder (ADHD)symptoms among 3-10-year-old children and its relationship with sleep.Methods Taking gender,grade (junior in kindergarten to third grade),and region(urban and rural areas) as stratification variable,1 535 children aged 3 to 10 years old were selected by random in six areas nationwide.ADHD Rating Scale-Ⅳ-Parent Version and Pittsburgh Sleep Quality Index were adopted to investigate ADHD symptoms and sleep of these children.Results 24.95％ of the investigated children had ADHD symptoms.Boys scored higher than girls in all indicators(boys:Inattention (IA):(9.21±3.75),Hyperactivity-Impulsivity (HI):(8.62± 3.87),Total:(17.82±7.01),girls:IA:(8.16±3.77),HI:(7.32±3.76),Total:(15.48±6.98)) while girls had higher incidence of ADHD symptoms than boys (girls:IA:16.19％,HI:27.02％,Total:32.51％,boys:IA:11.70％,HI:8.19％,Total:17.43％).Peak incidence occured in children aged 7-9 (7 years old group:IA:18.22％,HI:21.93 ％,Total:38.66％,8 years old group:IA:20.66％,HI:23.25 ％,Total:38.01％,9 years old group:IA:18.22％,HI:33.78％,Total:32.00％).Rural children had higher incidence of ADHD symptoms than urban children(rural children:IA:18.37％,HI:18.37％,Total:29.48％,urban children:IA:10.47％,HI:15.12％,Total:21.40％).Logistic regression results showed that sleep quality,sleep disorder and daily dysfunction can predict the incidence of ADHD symptoms to a certain degree.Conclusion The incidence of ADHD symptoms appear to be high in children evaluating by ADHD Rating Scale-Ⅳ-Parent Version.More attention should be paid to girls and rural children' s ADHD symptoms.7-9 years old children have the highest incidence of ADHD symptoms.The more problems in daytime dysfunction,sleep disorders and bedtime,the more ADHD symptoms will be observed.

Objective To develop a scale of the executive functional status for adolescents.Methods Regarding to the structure and the conception of executive function and the results of interviews to several adolescents,a preliminary inventory including 37 items was developed.The investigation sample consisted of 1722 students from 2 provinces in China by stratified sampling,and the the internal consistency,conduct validity and criterion validity were assessed by exploratory factor analysis.Results The revised scale including 21 items was consisted of three factors:inhibition control,cognitive flexibility,working memory,which explained 45.39％ of the total variance.The factor loading ranged from 0.499 to 0.727.The Cronbach alpha ranged from 0.786-0.897 for the scale and its three factors.Factor structure fitted actual data and its fit indices were x2=530.44,df=186,RESMA =0.053,GFI =0.93,AGFI =0.91,NFI =0.96,CFI =0.97.Conclusion It shows that the reliability and validity of the scale meet the standard of the psychometrics,and it can be suitable for evaluating the functional status of execution of Chinese adolescent.

Objective To evaluate the performance of the Sendai Guidelines,Fukuoka Guidelines and Pancreatic Cystic Lesions Management Guidelines (Chinese guidelines) in predicting malignant mucinous pancreatic cystic neoplasms (PCN).Methods A retrospective analysis of 196 patients,who received surgery and were pathologically identified as PCN or intraductal papillary mucinous neoplasms (IPMN),underwent surgical resection in Ruijin Hospital affiliated with Shanghai Jiao Tong University from January 2003 to April 2017 was performed.The differences on clinical and pathological parameters between malignant mucinous and benign mucinous PCN were compared.The accuracy,sensitivity,specificity,positive predictive value (PPV)and negative predictive value (NPV) of the indications for surgery in the Sendai,Fukuoka and Chinese Guidelines in predicting malignant mucinous PCN were calculated.Results Of 196 patients,39 patients (19.9％) were confirmed as malignant tumors and 157 patients (80.1％) were confirmed as benign tumors by pathology.There were significant differences on age,symptoms (abdominal pain,jaundice or pancreatitis),tumor solid composition,pancreatic duct diameter,tumor site,tumor diameter ＞3 cm,and serum CA199 level between malignant and benign patients (all P ＜0.05).But there were no significant differences on gender distribution,tumor diameter,mural nodules and the proportion of mucinous cystic neoplasm (MCN)and intra-ductal papillary mucinous neoplasm (IPMN).165 patients (84.2％) met the Sendai Guidelines,153 patients (78.1％) met the Chinese guideline,and only 61 patients (31.1％) met the Fukuoka Guidelines.All 39 patients with malignant tumors met the indications in Sendai Guidelines and Chinese guidelines,and only 35 patients had the indication for surgery in the Fukuoka Guidelines.The accuracy,sensitivity,specificity,PPV and NPV of the Fukuoka Guidelines for predicting the malignancy were 84.7％,89.7％,83.4％,57.4％ and 97.0％,compared to 35.7％,100％,19.8％,23.6％ and 100％ for the Sendai and 41.8％,100％,27.4％,25.5％ and 100％ for the Chinese guidelines,respectively.Conclusions The performance of the Chinese guideline is slightly better than the Sendai Guidelines,while both of them can lead to a larger number of patients undergoing unnecessary surgical resection.Though the rate of missed diagnosis could reach 10.3％,the Fukuoka Guidelines gets the highest accuracy.