Severity: Warning
Message: file_get_contents(https://...@pubfacts.com&api_key=b8daa3ad693db53b1410957c26c9a51b4908&a=1): Failed to open stream: HTTP request failed! HTTP/1.1 429 Too Many Requests
Filename: helpers/my_audit_helper.php
Line Number: 176
Backtrace:
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 176
Function: file_get_contents
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 250
Function: simplexml_load_file_from_url
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 1034
Function: getPubMedXML
File: /var/www/html/application/helpers/my_audit_helper.php
Line: 3152
Function: GetPubMedArticleOutput_2016
File: /var/www/html/application/controllers/Detail.php
Line: 575
Function: pubMedSearch_Global
File: /var/www/html/application/controllers/Detail.php
Line: 489
Function: pubMedGetRelatedKeyword
File: /var/www/html/index.php
Line: 316
Function: require_once
Objective: To investigate the epidemiological features of back pain, spondyloarthritis (SpA) and ankylosing spondylitis (AS) in Beijing Shougang district.
Methods: Set up Chinese version of questionnaire about incidence of spondyloarthropathy. Employees and retired ones were drawn out from sub-factory units by non-randomized sampling.15 357 subjects were investigated, of which 12 125 questionnaires were taken. Suspected cases were then screened with sacroiliac joint X ray and HLA-B(27) testing. 2009 assessment in ankylosing spondylitis (ASAS) criteria were used for diagnosing SpA.
Results: Back pain is common with total incidence of 42.7%, and the most common pattern is mechanical pain. The incidence of SpA is 0.58% and that of AS is 0.36%, while only 28.9% AS patients had been diagnosed before and received treatment.
Conclusion: The AS incidence in Shougang district is similar with the epidemiological data got from other districts of China. And knowledge of SpA and AS is needed in China.
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