Objective To determine if the carbon dioxide (CO 2) pressure used in laparoscopic cholecystectomy (LC) has any effect on the occurrence of postoperative shoulder pain. Methods One hundred and twenty consecutive patients undergoing LC were prospectively divided into three groups(40 patients in each group): Patients in group A underwent LC with 10 mm Hg of CO 2, those in group B with 12 mm Hg of CO 2, and in group C with 14 mm Hg of CO 2. PaO 2?PaCO 2?pH before and after LC were recorded. Shoulder pain was recorded on a visual analogue pain scale 1,3,6,12,24,48,72,96 h after operation. Results The intraoperative CO 2 consumption was significantly higher in group C (F=11.38,P

Objective:To investigate the associations of major depressive disorder with coronary heart disease (CHD)and stroke in Chinese adults aged 30 -79 years.Methods:In 2004 -2008,China Ka-doorie Biobank was conducted in 1 0 geographically defined regions (5 urban and 5 rural)of China.A to-tal number of 51 2 891 participants aged 30 -79 years were recruited in the baseline survey.A laptop-based electronic questionnaire was administrated face-to-face by trained health workers,collecting the general demographic and socio-economic status,dietary and other lifestyle behaviours (e.g.smoking,al-cohol drinking,physical activity),medical history and family history of common chronic diseases.Major depressive episodes (MDE)in the past 1 2 months were assessed with the World Health Organization composite international diagnostic interview-short form (CIDI-SF).The physical measurements included the heights and weights,which were used to calculate the body mass indexes (BMI).Chi squared and t test were used to compare the differences in participants characteristics according to their major depressive disorder.Logistic models were employed to estimate the odds ratios (OR)and 95% CI of their major de-pressive disorder with prevalent coronary heart disease and stroke.Results:Among the 51 2 891 partici-pants,3 281 (0.6%)showed an MDE in the preceding 1 2 months,1 5 472 (3.0%)reported prevalent CHD,and 8 884 (1 .7%)reported prevalent stroke.Major depressive disorder was significantly associa-ted with an increased risk of CHD and risk of stroke.Age-and gender-adjusted ORs (95% CI)were 1 . 80 (1 .53 -2.1 2)for CHD and 2.53 (2.09 -3.05)for stroke.The associations were significant after further adjustment for potential confounders,such as other socio-demographic status,smoking,alcohol drinking,physical activity,and BMI,prevalent hypertension,diabetes as well as family history of cardio-vascular diseases (OR =1 .83,95% CI =1 .54 -2.1 8 for CHD;OR =2.1 9,95% CI =1 .79 -2.69 for stroke).Moreover,gender significantly interacted with MDE on prevalent stroke (P for multiplicative in-teraction =0.01 3).The men with an MDE in the past 1 2 months had the highest risk of stroke in the joint analyses of gender and depression disorder (OR =5.02,95% CI =3.70 -6.82).Conclusion:The findings from this large cross-sectional study suggest that the presence of MDE is a risk factor for both CHD and stroke in Chinese adults aged 30 -79 years,but further prospective studies are warranted to validate the results.

Since the performance appraisal of national tertiary public hospitals was carried out, higher requirements have been put forward for the operation and management of hospitals. Under the premise of ensuring the quality of medical service and medical safety, how to save hospital operating costs and improve the efficiency is an urgent problem for hospital managers. Supported by information upgrading, a tertiary hospital in Guangzhou reformed the treatment process and carried out pre-hospitalization in surgical departments. Data showed that pre-hospitalization can significantly shorten the length of stay, reduce hospitalization costs, and improve the operation efficiency of the hospital.

Objective: To observe the root and root canal morphology of mandibular second molars in Western Guangxi by CBCT, to provide a reference for clinical diagnosis and treatment. Methods: In total, 564 patients′ 1 128 mandibular second molars that satisfy the inclusion criteria were analyzed with a planmecaromexis CBCT machine and its own image analysis software. The patients′ gender, age and ethnic differences in the root and canal morphology and the symmetry of the bilateral root and canal were statistically analyzed. Results: Among the 1 128 mandibular second molars, 662 were the Zhuang ethnic group and 384 were the Han ethnic group, and 82 were other ethnic groups; the double root type and C-shaped root type accounted for a relatively high proportion: 73.94% and 24.47%, respectively. The detection rates of the double root type were higher in males than in females (P < 0.05); the detection rates of the C-shaped root type were higher in females than in males (P <0.05); the root type of the teeth was mainly double-rooted in the Zhuang ethnic group (P<0.01). The incidence of type IV in the mesial root of the double root type mandibular second molar was the highest (P < 0.01), and the incidence of type I in the distal root was the highest (P < 0.01). The C-shaped root canal is more continuous at the mouth of the root canal, more downward corresponds to a worse continuity: in three different levels of root canal orifice, root middle and root apex, the root canal orifice is dominated by the C1 type, and both root middle and root apex are mainly C3-type (P < 0.01). The difference in symmetry of bilateral roots and root canals was statistically significant among different gender groups, age groups, and ethnic groups (P < 0.05): there were more males than females, the results in the 18-35-year-old group and the Zhuang ethnic group were higher. Conclusion The root and root canal morphology of mandibular second molars in western Guangxi people are complex and changeable. The roots are mainly double root type in the Han ethnic group and the Zhuang ethnic group. C-shaped roots are also common. The detection rate of C-shaped roots in the Zhuang ethnic group was higher, and the symmetry rate of bilateral roots and that of bilateral root canals was higher in the Zhuang ethnic group than in the Han ethnic group.

OBJECTIVETo describe the regional differences on patterns of alcohol consumption across 10 study in the China Kadoorie Biobank (CKB) areas involving half a million adults.

METHODSThe baseline survey of CKB took place in 5 urban and 5 rural areas across China during 2004-2008. Detailed information on alcohol consumption of 512 891 participants aged 30-79 years was gathered and analyzed.

RESULTSwere directly standardized on age (in 10-age groups) and education (5 groups) structure of the study population for different sex.

RESULTSThe overall prevalence rates of regular drinking (i.e., at least weekly) were 33.1% among men and 2.2% among women. Among men, the prevalence rate was seen highest in Harbin (52.0%) and Sichuan (50.2%), but lowest in Gansu (8.1%) and Haikou (18.8%). Most regular drinkers in Sichuan, Hunan, and Gansu habitually drank strong spirits (≥ 40% alcohol content), whereas beer was most commonly consumed in Harbin and Qingdao, with rice wine most commonly used in the southern regions (Haikou, Suzhou,Zhejiang and Liuzhou). Mean alcohol consumption was highest in Sichuan (414.6 g/week). Although the mean alcohol consumptions appeared lower on regular occasion in Gansu (195.2 g/week) and Henan (239.6 g/week) than in other regions, the amount consumed on special occasions in these two regions were the highest (Henan:202.3 g/day; Gansu:171.2 g/day). Similar patterns were also seen in women. Of all the regular drinkers, 82.6% of men and 56.6% of women reported heavy drinking episodes (men: >60 g, women: >40 g) on special occasions.

CONCLUSIONThe patterns of alcohol consumption including prevalence, frequency, amount, binge drinking pattern, and type of alcohol beverage varied greatly among the ten areas of CKB under study.

Adult ; Aged ; Alcohol Drinking ; epidemiology ; Alcoholic Beverages ; China ; epidemiology ; Demography ; Female ; Geography ; Humans ; Male ; Middle Aged ; Prospective Studies ; Rural Population ; Urban Population

OBJECTIVETo describe the regional differences in adults' smoking pattern found by China Kadoorie Biobank (CKB) study involving half million adults in 10 areas in China.

METHODSAfter exclusion of the adults with self reported histories of coronary heart disease, stroke, cancer and chronic obstructive pulmonary disease at baseline survey, the area specific differences in smoking pattern of 452 829 subjects aged 30-79 years was analyzed.

RESULTSThe overall rate of current smoker was higher in males (64.2%) than in females (2.1%). For females, the current smoker rate was higher in Harbin (10.5%) and Sichuan (8.5%) than in other areas. For males, the current smoker rate and the average numbers of cigarettes smoked per day were high in Hunan (68.8%, 20.9) and Sichuan (67.2%, 21.5) ; the current smoker rate was lowest (49.9%) but the average number of cigarettes smoked per day was highest (21.9) in Haikou. On the other hand, Gansu showed the highest rate of current smoker (71.4% ) with a lower mean number of cigarettes smoked per day (14.9). Most current smokers in males (88.3% ) smoked filter cigarettes, while hand-rolled cigarettes were commonly used in Sichuan (38.8%) and Gansu (37.8%) and pipes or water pipe were mainly used in Henan (14.6%).

CONCLUSIONThe rate of current smoker and other patterns of smoking including cigarette type, daily amount and inhalation depth varied greatly among the adults in 10 areas covered by CKB study.

Adult ; Aged ; China ; epidemiology ; Female ; Humans ; Male ; Middle Aged ; Self Report ; Smoking ; epidemiology ; Surveys and Questionnaires

OBJECTIVETo describe the gender and regional differences in adults' tea drinking pattern found in China Kadoorie Biobank (CKB) survey, involving half million adults, in 10 areas in China.

METHODSThe baseline survey of CKB was conducted in 5 urban areas and 5 rural areas in China during 2004-2008. The information on tea drinking of 512 891 adults aged 30-79 years was collected and analyzed.

RESULTSThe overall prevalence of regular tea drinking (i.e., weekly) was 50.7% in males and 21.3% in females. Among 10 areas, Hunan reported the highest regular tea drinking prevalence (74.3% in males, 76.6% in females), while Henan reported the lowest regular tea drinking prevalence (5.5% in males, 1.0% in females). Most regular tea drinkers consumed green tea except those from Zhejiang and Haikou. Hunan reported the highest tea consumption per time (3.8 g in males, 3.1 g in females), per day (6.2 g in males, 4.1 g in females) and per week (38.4 g in males, 25.0 g in females).

CONCLUSIONThe adults' tea drinking pattern i.e. frequency, type, amount of tea and preferred concentration of tea water, varied greatly among the 10 regions covered by CKB study.

Adult ; Aged ; China ; Drinking ; Female ; Humans ; Male ; Middle Aged ; Surveys and Questionnaires ; Tea

OBJECTIVETo describe gender and regional differences in the prevalence of overweight/obesity in adults found by China Kadoorie Biobank (CKB) study, involving 512 489 adults, in 10 areas in China.

METHODSThe baseline survey of CKB was conducted in 5 urban areas and 5 rural areas in China during 2004-2008. After excluding those with extreme value of BMI (<15.0 kg/m(2) or >50 kg/m(2)), 512 489 subjects were included in the analysis. Overweight/obesity was classified according to BMI and WC, and diagnosed according to the guideline for prevention and control of overweight/obesity in Chinese adults. The gender and regional specific distributions of overweight/obesity were compared after adjusting for age.

RESULTSThe overall prevalence of overweight/obesity was higher in females (45.3%) than in males (41.7%), and the prevalence of central obesity was also higher in females (44.6%) than in males (38.3%). Both the prevalence of overweight/obesity (66.9% in males and 67.5% in females) and the central obesity (63.3% in males and 64.9% in females) were highest in Qingdao. The area specific difference in the prevalence was more obvious in males than in females. Rural areas all had the low prevalence except Henan. Moreover, central obesity was diagnosed in some subjects (15.3% in females, 9.8% in males) with normal/low BMI (<24.0 kg/m(2)). This phenomenon was more obvious in Qingdao (22.2% in males and 23.2% in females).

CONCLUSIONThe prevalence of overweight/obesity in adults varied greatly across different areas in China.

Adult ; Asian Continental Ancestry Group ; China ; epidemiology ; Female ; Geography ; Humans ; Male ; Obesity ; epidemiology ; Obesity, Abdominal ; epidemiology ; Overweight ; epidemiology ; Prevalence ; Rural Population ; Surveys and Questionnaires ; Urban Population

OBJECTIVETo describe the differences in diet intake frequency of adults in 10 areas surveyed by China Kadoorie Biobank (CKB) project.

METHODSCKB project recruited voluntary residents aged 30-79 years from 5 urban areas and 5 rural areas in China. The baseline survey was conducted among 512 891 eligible subjects during 2004-2008. The intake frequencies of 12 food groups were assessed through in-person interviews and analyzed. The results were adjusted for age and sex structure of the study population.

RESULTSRice was the main cereal consumed every day in urban areas (99.0%) and rural areas (99.9%) in southern China, while wheat was the main cereal consumed every day in rural areas (99.0%) and Qingdao (88.4%) in northern China. Most subjects in Henan (98.8%) consumed other staple food every day. The lowest proportion of daily intake of fresh vegetables was observed in Gansu (74.0%) . In both southern and northern areas, urban subjects had higher proportions of daily intakes of fresh fruits, preserved vegetables, and meat than rural subjects. Similar results were found when comparing the proportions of intakes of poultry and fish/seafood at least 1 day every week. Contrast to southern China (urban: 6.5%, rural: 6.9%) , the proportions of daily intake of fresh eggs were higher in both urban areas (37.1%) and rural areas (14.6%) in northern China. The highest proportions of daily intake of soybean products and dairy products were observed in Harbin (10.0%) and Qingdao (34.3%).

CONCLUSIONThe intake of cereal, fresh eggs and soybean products differed between the south and the north of China. The intake of meat, poultry, fish/seafood, fresh fruits, preserved vegetables and dairy products varied considerably between urban areas and rural areas.

OBJECTIVETo examine the socio-demographic patterns on 12-month major depressive episodes (MDE) among Chinese adults aged 30-79 years.

METHODSSocio-demographic variables from half a million Chinese people aged 30-79 years in the China Kadoorie Biobank study during 2004-2008, were collected. For those showing signs of depression, an additional World Health Organization Composite International Diagnostic Interview-Short Form (CIDI-SF) was face to face administrated, to assess the MDE according to Diagnostic and Statistical Manual of Mental Disorder (DSM)- IV criteria. Chi squared and non-parametric tests were used to compare the differences between socio-demographic categories, depressive symptoms and help-seeking behaviors. Associations with MDE for socio-demographic variables were examined by logistic models.

RESULTSA total of 3 281(6.40‰) studied subjects showed an MDE in the preceding 12 months. Gender, marital status, occupation and household income were correlated with MDE. Somatization was common in Chinese MDE patients while symptoms as weight change (99.91%), sleeping disorder (83.60%) and feeling tired (81.59%), stood for the top 3. As for each episode, the proportions and the total number of depressive symptoms appeared higher among females (P < 0.05). One third of the patients did not seek for any social support or psychotherapy with only 8.99% had ever taken antidepressant drugs.

CONCLUSIONRates of depression varied significantly between social groups in Chinese adults aged 30-79. In this study, only 65.19% of the MDE patients ever has sought help or received treatment.

Adult ; Aged ; China ; epidemiology ; Demography ; Depression ; Depressive Disorder, Major ; epidemiology ; psychology ; Diagnostic and Statistical Manual of Mental Disorders ; Female ; Humans ; Logistic Models ; Middle Aged