In multivariable Cox analysis , adjusting for age , sex , hemoglobin , diabetes , time-varying SBP , heart rate , study treatment and Sokolow-Lyon hypertrophy , psoriasis , treated as a time-varying covariate , was associated with a two-fold higher risk of new-onset atrial fibrillation -LSB- hazard ratio : @ ( @ % confidence interval ( CI ) : @-@ @ ) , P = @ -RSB- .