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Objective To study the iodine nutritional status of pregnant women in Foshan City,Guangdong Province,and to provide basis for iodine supplementation scientifically for them.Methods In 2017,five districts Chancheng,Nanhai,Shunde,Sanshui and Gaoming in Foshan were selected.Each monitoring site was divided into five sections according to stratified random sampling in five directions:east,west,south,north and middle.One township (street) was taken in each section,and 20 pregnant women were taken from each township (street) to detected their family salt iodine and urinary iodine levels.Results A total of 500 edible salt samples were collected from the families of pregnant women,the median of salt iodine was 24.8 mg/kg,the qualified iodized salt consumption rate was 95.8％ (479/500),and the iodized salt coverage rate was 99.0％ (495/500).There was a statistically significant difference in the iodine content of edible salt of pregnant women in diffierent districts (H =26.9,P ＜ 0.05).A total of 500 urine samples were collected from pregnant women,the median of urinary iodine was 138.9 μg/L.There was a statistically significant difference in the levels of urinary iodine content of pregnant women in different districts (H =14.5,P ＜ 0.05).There was no statistically significant difference in urinary iodine of pregnant women during different stages of pregnancy (H =2.6,P ＞ 0.05).Conclusions The iodine intake for pregnant women is in a state of deficiency (＜ 150 μg/L) in Foshan of Guangdong Province.It is necessary to further strengthen the health education of key populations,and improve the iodine nutritional status of pregnant women.
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Objective To explore the clinical value of portal exposure in laparoscopic treatment of children with type Ⅲ biliary atresia (BA).Methods From June 2013 to October 2017,30 infants with type Ⅲ BA who treated with laparoscopic portoenterostomy in Huai'an Women and Children's Hospital were selected.A percutaneous suture was used to snare the round ligament and retract the liver,other percutaneous stay sutures were then introduced and fundus and neck of gallbladder were sutured to elevate the liver to expose the portal hepatis.The fibro cord and hepatic vessels were mobilized,and then two rubber bands were put around the left and right portal veins and hepatic arteries.The portal hepatis was exposed by laterally stretching the two elastic rubber bands.The fibro cord was removed and then laparoscopic portoenterostomy was accomplished.In 20 cases,the liver was enlarged,part of hepatic lobus quadratus was removed laparoscopiclly for exposure of the portal hepatis.Results There were 30 cases in this group,2 cases were converted to open surgery by a micro transverse incision.There was no surgical death.Time of laparoscopic procedure varied from 210 to 280 min.All cases survived the surgery without any intraoperative complications.Blood loss during operation was minimal,without necessity for blood transfusion.One case died of respiratory failure one week after surgery.Two cases were lost follow-up.Twenty-five cases were followed up for 3～51 months(mean 22.4 months).Three cases died because of repeated cholangitis and liver failure at 10,16,35 months postoperatively.Nineteen patients' total bilirubin had dropped to normal,three others' bilirubin levels dropped significantly after surgery.Conclusion The technique of laparoscopic hepatic porta exposure can help to complete hepatic portoenterostomy successfully,reduce the conversion rate of laparoscopic surgery,and improve the surgical effect.
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Objective @#To explore the spatial distribution of occupational diseases in Guangdong Province and to provide evidence for the policy development of occupational disease prevention and control. @*Methods @#A database of occupational disease incidence from 2009 to 2016 in Guangdong Province was built. The distribution of occupational diseases in Guangdong Province was displayed based on the geographic information system（GIS）, then spatial autocorrelation analysis and trend-surface analysis were carried out to explore the clustering areas and spatial epidemic characteristics of occupational diseases in Guangdong Province.@* Results @#The number of cases with occupational diseases was 5 231 and was increasing year by year from 2009 to 2016 in Guangdong Province. The high-incidence areas were located in Guangzhou,Shenzhen,Foshan and Dongguan. Through global spatial autocorrelation analysis,it was found that there were spatial clustering of occupational diseases in Guangdong Province in each year（P<0.05）,and the cumulative incidence was also clustered（Moran's I=0.492,P<0.05）. The number of cases in Guangzhou,Shenzhen,Foshan and Dongguan had local spatial autocorrelation,and the local Moran's I values were 10.329,8.614,3.725 and 9.811,respectively（P<0.05）. The results of trend surface analysis showed that the overall incidence of occupational disease had a slight increase from west to east,and the Pearl River Delta region was a high-incidence area. @*Conclusion @#The incidence of occupational diseases in Guangdong Province had an obvious spatial clustering,the Pearl River Delta region was a high-incidence area.
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Objective@#To explore the occupational disease spatial distribution characteristics in Guangzhou and Foshan city in 2006-2013 with Geographic Information System and to provide evidence for making control strategy.@*Methods@#The data on occupational disease diagnosis in Guangzhou and Foshan city from 2006 through 2013 were collected and linked to the digital map at administrative county level with Arc GIS12.0 software for spatial analysis.@*Results@#The maps of occupational disease and Moran’s spatial autocor-relation analysis showed that the spatial aggregation existed in Shunde and Nanhai region with Moran’s index 1.727, -0.003. Local Moran’s I spatial autocorrelation analysis pointed out the "positive high incidence re-gion" and the "negative high incidence region" during 2006~2013. Trend analysis showed that the diagnosis case increased slightly then declined from west to east, increase obviously from north to south, declined from? southwest to northeast, high in the middle and low on both sides in northwest-southeast direction.@*Conclusions@#The occupational disease is obviously geographical distribution in Guangzhou and Foshan city. The corresponding prevention measures should be made according to the geographical distribution.
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<p><b>OBJECTIVE</b>To explore the application of the gray series model GM (1, 1) in predicting trends in the incidence of pneumoconiosis and evaluate its degree of predicted precision.</p><p><b>METHODS</b>Analyzing the incidence of pneumoconiosis in this region from 2009 to 2013, and predicting the incidence of pneumoconiosis of the area in 2014-2016 by establishing GM (1, 1) according to the gray system theory.</p><p><b>RESULTS</b>Using occupational pneumoconiosis population data from 2009 to 2013, to establish GM (1, 1) model: yt = 1396.89e(0.12(t-1)), α = -0.12, µ = 147.2. The pneumoconiosis in 2014, 2015, 2016 were predicted respectively 51, 47, 43 cases based on the GM (1, 1) model, and C value of model is 0.15, P value is 1, all of them meet the requirements of model predictions. It shows the cases of pneumoconiosis are rising significantly.</p><p><b>CONCLUSION</b>GM (1, 1) model can be used to predict the recent trend in the incidence of pneumoconiosis.</p>