aDue to the matching, the MS and comparator cohorts had the same distribution of demographic factors. bThe birth year for patients born before 1920 was set to 1920 to protect privacy. cIncludes gaps i
Notes. ADI-R = Autism Diagnostic Interview-Revised; IQ = Intelligence quotient as assessed by the Chinese version of the Wechsler Intelligence Scale for Children-Fourth Edition (Hong Kong) or the Stan
Demographic data and clinical characteristics of 6,621 treated AS patients and 6,621 non-AS individuals matched for age, sex, year of the index date and average annual numbers of cDDD of NSAIDs.
