Objective To study the iodine nutritional status and thyroid function of adults in urban and rural areas of Wuwei City Gansu Province.Methods A cross-sectional survey was performed in 200 adults aged 18-45 who had lived more than six months in Wuwei City from April 2009 to January 2010.A random urine and fasting blood samples were collected.Urinary iodine content was measured with arsenic cerium catalytic spectrophotometry.The thyroid-stimulating hormone (TSH),free thyroid hormone (FT4) and three free triiodothyronine (FT3) were quantified by direct chemiluminescence immunoassay.Thyroglobulin antibodies (TGAb) and thyroid microsomal antibodies (TMAb) were detected by radioimmunoassay.Results A total of 99 and 98 copies of urine samples of urban and rural groups were tested,respectively.The median of urinary iodine of urban and rural groups was 189.0 and 258.2 μg/L,respectively,and rural group was higher than urban group (Z =-4.020,P ＜ 0.01).A total of 104 and 95 copies of blood samples of urban and rural groups were detected; mean value of FT4 in urban group [(16.8 ± 3.0)pmol/L] was higher than that of rural group [(15.4 ± 2.4)pmol/L,t =3.539,P ＜ 0.01].The positive rates of TGAb of urban and rural groups were 11.5％ (12/104) and 15.8％ (15/95),respectively; the positive rates of TMAb of urban and rural groups were 13.5％ (14/104) and 14.7％ (14/95),respectively; the positive rates of TGAb of male and female were 5.5％ (6/109) and 23.3％ (21/90),respectively; the positive rates of TMAb of male and female were 6.4％ (7/109) and 23.3％ (21/90),respectively.The positive rates of TGAb and TMAb were lower in male than in female (x2 =13.362,11.661,all P ＜ 0.01).The rates of thyroid function disorders of urban and rural groups were 16.3％ (17/104) and 8.4％ (8/95),of male and female 11.9％ (13/109) and 13.3％ (12/90),respectively.Subclinical hypothyroidism in all thyroid function disorders was the most common,which was 14.4％ (15/104) and 7.4％ (7/95) in urban and rural groups,11.0％ (12/109) and 11.1％ (10/90) in male and female,respectively.Conclusions Iodine nutrition level is appropriate for adults in urban areas,but in rural areas iodine nutrition is high or excessive; subclinical hypothyroidism in all thyroid function disorders is the most common; we should be concerned about the risk of iodine overdose,especially the risk of illness in women.

Objective To explore the intellectual profile of children with autism spectrum disorders (ASD) combined with hypophrenia.Methods The study followed a matching design,37 children with ASD combined with hypophrenia and 40 with simply intelligence disability while paired based on gender and age were selected.The intellectual profile of the studied children was determined with the Wechsler intelligence scale for children-Chinese edition (WISC-R) scale.Results The full intelligence quotient (FIQ) of the ASD group and the control group were (54.70±8.26) and (54.60-±7.17),the differences were not statistically significant(P＞0.05).Verbal intelligence quotient(VIQ) and performance intelligence quotient(PIQ) of ASD group were(54.70±8.26) and (64.51±12.25) and the control group were(56.70±8.02) and(57.25±9.43).Children with ASD scored lower on VIQ and higher on PIQ.There was significant difference between the two groups(t=3.582,P＜0.01;t=2.928,P＜0.01).There was statistically significant difference on VIQ-PIQ of ASD group(t=8.14,P＜0.01).The group with ASD had a profile characterized by a high score on Puzzle and Block Design with a low comprehension score.The score of FIQ,VIQ as well as information,arithmetic,comprehension,Picture arrangement were negatively correlated with ABC (r=-0.36,P＜0.05;r=-0.40,P＜ 0.05;r=-0.41,P＜0.05;r=-0.44,P＜0.01;r=-0.44,P＜0.01;r=-0.35,P＜0.05).Conclusion Children with autism spectrum disorders with hypophrenia have special cognitive profile,which can be used to provide basis for making intervention strategies.

Objective: To investigate the clinical outcome of modified thoracic umbilical flap, spanning chest and abdomen, in repairing large soft-tissue defect of limbs. Methods: From April 2012 to March 2017, 7 patients with large soft-tissue defects of limbs were admitted in the Department of Traumatic Osteopathic, Yidu Central Hospital of Weifang. The patients include 5 males and 2 females, aged from 29 to 51 years, with the mean age of 43 years. Four patients had upper limb soft-tissue defect and 3 patients were lower limb. All limbs large soft-tissue defects were treated by ultra-long thoracic umbilical flaps, spanning chest and abdomen. Epigastric artery and intercostal arteries or lateral thoracic artery were included in the flap to provide double blood supply with only one vascular anastomosis. Results: All 7 flaps(30 cm×9 cm-45 cm×13 cm) survived. The followed-up period was 3 months to 1 years. There was no necrosis or infection in tendon and bone observed. The texture of flaps in 5 patients were similar to surrounding skin, or slightly thickened by 2-3 mm. One patient had slightly bloated flap due to obesity, but had no effect on limb function. All patients were satisfied with the outcome. Conclusions Modified thoracic umbilical flap is an reasonable design for the repairment of large soft-tissue defect of limbs, and easily to carry out.

OBJECTIVESTo investigate the incidence of syphilis infection and to determine the risk factors related to syphilis infection among young men who had sex with men (YMSM), which were documented for developing effective intervention to prevent sexually transmitted diseases among YMSM.

METHODSA cohort study was conducted in 8 cities (Beijing, Shanghai, Kunming,Guiyang, Chongqing, Chengdu, Urumqi and Nanning) from May to December, 2009. A total of 1 037 syphilis-negative YMSM aged 18-25 were enrolled in the cohort and the two follow-up surveys were carried out every six months. The contents of study included sociodemographic characteristics, HIV-related knowledge, sexual behavior and condom use in the 6 months prior to survey. All participants were tested for syphilis with whole blood specimens. Chi-square test was used to compare demographic characteristics of participants in baseline with those of two follow-up, and Cox regression analysis was used to identify risk factors associated with syphilis infection.

RESULTSThe rates of participants in 6, 12 months follow-up surveys was 79.85% (828/1 037) and 82.16% (852/1 037) respectively.39 syphilis seroconversions were found in the 12 months follow-up survey. Cumulative observed person-years during follow-up time was 1 106.67. The syphilis incidence rate was 3.5%. The Multivariate Cox regression analysis showed that the education of senior high school (senior high school vs some college or higher, RR = 2.19, 95% CI:1.21-3.98), bisexual orientation (bisexual orientation vs homosexual orientation, RR = 2.19, 95% CI:1.21-3.97), score of HIV/AIDS knowledge <8 (score of HIV/AIDS knowledge <8 vs knowledge = 8, RR = 2.39, 95%CI:1.35-4.21), had two and more sexual partners and inconsistent condom use in the past 6 months (inconsistent condom use vs consistent condom use, RR = 3.10, 95% CI:1.39-6.91) were significantly associated with syphilis seroconversion in the 12-month period.

CONCLUSIONSThe syphilis incidence was high and risk behaviors were common among YMSM of China.

Adolescent ; Adult ; China ; epidemiology ; Cohort Studies ; Homosexuality, Male ; Humans ; Male ; Risk Factors ; Risk-Taking ; Syphilis ; epidemiology ; Young Adult

Objective To evaluate the risk factors and sonographic findings of pregnancies complicated by placenta increta or placenta percreta. Methods Totally, 2219 cases were retrospectively analyzed from 20 tertiary hospitals in China from January 2011 to December 2015. The data were collected based on the original case records. All cases were divided into two groups, the placenta increta (PI) group (79.1％, 1755/2219) and the placenta percreta (PP) group (20.9％, 464/2219), according to the degree of placental implantation. The risk factors and sonographic findings of placenta increta or percreta were analyzed by uni-factor and logistic regression statistic methods. Results The risk factors associated with the degree of placental implantation were age, gravida, previous abortion or miscarriage, previous cesarean sections, and placenta previa (all P<0.05), especially, previous cesarean sections (χ2=157.961) and placenta previa (χ2=91.759). Sonographic findings could be used to predict the degree of placental invasion especially the boundaries between placenta and uterine serosa, the boundary between placenta and myometrium, the disruption of the placental-uterine wall interface and loss of the normal retroplacental hypoechoic zone(all P<0.01). Conclusions Previous cesarean sections and placenta previa are the main independent risk factors associated with the degree of placenta implantation. Ultrasound could be used to make a prenatal suggestive diagnosis of placenta accreta spectrum disorders.

Objective: To investigate the effects of three-dimensional digital technology (3D-CTA) in repairing wounds of the limb with anterolateral thigh perforator flap. Methods: From April 2014 to June 2017, 12 patients with extensive skin and soft tissue defects on extremities were selected from the Yidu Central Hospital of Weifang. Twelve patients were performed anterior femoral perforator flaps. There were 9 males and 3 females, aged from 23 to 52 years old, with the mean age of 32 years. The defects were 8 cm×3 cm to 25 cm×9 cm in size, and all of them were accompanied by bone and/or muscle exposure. Preoperative CT scan of the donor site of the free flap used to achieve the three-dimensional images of arterial blood area, in order to determine the origin, direction, classification, length, diameter and the position of pedicle perforator of the anterolateral thigh perforator flap by 3D-CTA.According to the preoperative condition of lateral circumflex femoral artery, the perforator flaps of anterolateral femoral artery on the contralateral or ipsilateral side were designed to repair the wound. Results: Twelve anterolateral thigh perforator flaps have been transferred using above methods. All the flaps survived well and the donor site was directly closed.All patients were followed up for 1-6 months (mean 3 months). The appearance of flaps was satisfactory. The diameter and location of the perforator artery were measured using pre-operative digital angiography, as well as the actual value of perforator artery. Preoperative digital examination was consistent with the type of perforator found during the operation, with an accuracy of 100%. Conclusions For the soft tissue reconstruction by anterolateral thigh perforator flaps, preoperative digitization technology can identify the diameter, the type and origin of vessels, optimize the operation plan, reduce the difficulty of flap design, and reduce the risk of operation.