Sentence: Saudi Arabian MERS patients exhibited 4.1 and 5.0 times higher 14-day ( adjusted hazard risk ( aHR ) = 4.1 ; 95 % confidence interval ( CI ) 1.012-16.921 ) and 45-day ( aHR = 5.0 ; 95 % CI 1.856-13.581 ) mortality risk compared with MERS patients in the Republic of Korea or other countries. 
 Section: purpose