When these variables were entered together in the same model with adjustment for demographics and treatment strategy , DC treatment strategy [ OR ( 95 % CI ) : 1.50 ( 1.09 , 2.07 ) ] , female gender [ 1.69 ( 1.17 , 2.45 ) ] , current and past smoking ( vs. never ) [ 2.49 ( 1.63 , 3.81 ) and 1.93 ( 1.21 , 3.09 ) , respectively ] , and diabetes [ 2.28 ( 1.33 , 3.91 ) ] predicted incident widened spatial QRS-T angle .