In the ITT population ( N = @ ) , family members had PTSD-related symptoms significantly more frequently in the control group than in the intervention group -LSB- adjusted odds ratio , @ ; @ % confidence interval ( CI ) @-@ @ ; P = @ -RSB- as did family members to whom physicians did not propose witnessing CPR -LSB- adjusted odds ratio , @ ; @ % CI @-@ @ ; P = @ -RSB- .