rheumatoid arthritis
Item
a diagnosis of rheumatoid arthritis in both sibs by the 1987 acr criteria.
boolean
C0003873 (UMLS CUI [1])
bony erosions
Item
definite bony erosions in at least one affected sibling.
boolean
C0587240 (UMLS CUI [1])
disease onset
Item
age of disease onset greater than 18 years and less than 60 years in at least one sibling.
boolean
C0277793 (UMLS CUI [1])
psoriasis, inflammatory bowel disease, or systemic lupus erythematosus
Item
neither sibling has psoriasis, inflammatory bowel disease, or systemic lupus erythematosus.
boolean
C0033860 (UMLS CUI [1])
C0021390 (UMLS CUI [2])
C0024141 (UMLS CUI [3])
blood relatives inclusion
Item
blood relatives of affected sibling pairs: age greater than 18 years. where possible, all other affected siblings will be invited to participate. where possible, both parents of affected siblings will be invited to participate. other relatives, both affected and unaffected, may be invited to participate if, in the opinion of the investigators, samples from these individuals would contribute important genetic information. two cases in which this might happen are: a) extended families in which there are several affected individuals, where conventional linkage analysis might be applied; b) affected sibling pairs for which parents are unavailable, where additional siblings will provide information on parental alleles not transmitted to the affected siblings.
boolean
C0001779 (UMLS CUI [1])
psoriasis, inflammatory bowel disease, systemic lupus erythematosus.
Item
psoriasis, inflammatory bowel disease, systemic lupus erythematosus.
text
C0033860 (UMLS CUI [1])
C0021390 (UMLS CUI [2])
C0024141 (UMLS CUI [3])
infomed consent
Item
inability to provide infomed consent.
text
C0021430 (UMLS CUI [1])
blood relatives informed consent
Item
the sole criterion for exclusion of adult blood relatives of affected sibling pairs would be inability to provide informed consent.
text
C0021430 (UMLS CUI [1])