Objective To investigate the medical care conducts of community residents of Dongying and analyze the main problem in order to provide the evidence for optimizing the community health service model.Methods Stratified cluster sampling method was used,and 330 community residents in 4 communities were investigated with questionnaire about the medical care conducts.Results Among 330 residents,63％ of them did not attend medical clinics after getting minor illnesses,only 12.7％ of them chose to check up in large hospitals,and 14.2％ went to the community services.However,there were 10.1％ of the population attended private clinics.These medical care conducts were significantly related to gender,age,education level,and the payment patterns (x2 =51.0,106.5,16.3,31.8;P ＜0.05).Health condition has no effect on the residents' medical care conducts (x2 =11.3;P ＞ 0.05 ). Residents with different ages had significantly different influencing factors of choosing medical institution,and different their satisfaction on community service center ( x2 =15.7,44.7 ;P ＜ 0.01 ).Conclusions It should be encouraged to integrate the medical resources in order to establish the effective community services.The charge standards of medical procedures should be restricted by authority policies,and the residents should be guided to attend clinics in an appropriate way with reasonable payment.

OBJECTIVETo evaluate the precision of rat bone mineral density (BMD) measurements by Norland Excellplus dual-energy X-ray absorptiometry (DXA) and to investigate the BMD changes in ovariectomized (Ovx) rats in vitro.

METHODS(1) The coefficients of variation (CV) for BMD measurements at various skeletal regions were repeatedly determined by DXA in 10 Wistar rats in vitro. (2) BMD in lumbar vertebra (L5) and both sides of femurs was measured in total 90 rats. And (3) changes in BMD between Ovx and sham rats were compared.

RESULTS(1) The short-term CVs of BMD measurements in different regions by DXA were as follows, 1.58% for lumbar vertebra (L5), 0.90% for left femur, and 0.86% for right femur, respectively. The long-term CVs were 2.22% for lumbar vertebra (L5), 1.09% for left femur, and 1.20% for right femur. (2) The BMD values in 90 Wistar rats were (127.5 +/- 12.3) in lumbar vertebra (L5), (82.6 +/- 11.3) in corpus vertebra (L5'), (150.7 +/- 10.6) in left femur and (149.9 +/- 10.6) mg/cm2 in right femur, respectively. The correlation coefficient of BMD measurements between left and right femurs was 0.792 (P < 0.001). (3) In Ovx group, the BMD values of corpus vertebra (L5') and distal femurs were significantly decreased, that was 10.0%-17.5% lower in comparison with sham group (P < 0.001).

CONCLUSIONSMeasurement of rat BMD in vitro by Norland Excellplus DXA is a useful method, and it can reflect the changes in rat bone masses with good precision.

Absorptiometry, Photon ; Animals ; Bone Density ; Female ; In Vitro Techniques ; Ovariectomy ; Rats ; Rats, Wistar