The odds ratios ( ORs ) and 95 % confidence intervals ( CIs ) for SAIDs among those > or = 65 years of age who had worked for the vermiculite mining company were 2.14 ( 95 % CI , 0.90-5 .10 ) for all SAIDs and 3.23 ( 95 % CI , 1.31-7 .96 ) for RA .
