The IPA collects detailed data on four “important” people in an open item stating: “please name the four people most important to you in the past 6 months”. For these four people, patients were asked how each reacted to their abstinence or drinking. The response options were the same for each: 1 = left, or made you leave when you were not drinking/drinking, 2 = didn't accept, 3 = neutral, 4 = accepted, 5 = encouraged, 8 = person did not know about not drinking/drinking, and 9 = not applicable. A person was recorded as allowing/encouraging abstinence/drinking if they endorsed either code 4 or code 5. They were recorded as “discouraging” abstinence/drinking if they endorsed either code 1 or code 2. In preliminary analyses, we found that there was a strong correlation between encouraging abstinence and discouraging drinking, and vice versa. On this basis, we combined these into a paired items, pro-abstinence and pro-drinking. A person was coded as “pro-abstinence” if s/he either encouraged abstinence or discouraged drinking, or both. A person was coded as “pro-drinking” if s/he either encouraged
