Table 4.

Components of Long-Term Oxygen Treatment Trial adherence program for participants randomized to supplemental oxygen therapy

Adherence educator

• Trained and certified in motivational interviewing

• Help participant realize/calculate/recognize/determine his/her personal level of importance of oxygen

• Help participant articulate/identify his/her personal barriers to adherence and devise solutions

• Problem solve/troubleshoot, aiming at participant’s problems with adherence

Adherence promotion contacts after treatment assignment

• Within first week (in person)

• Weekly thereafter through 1 mo (telephone)

• Monthly thereafter through 6 mo (telephone)

• Every 2 mo thereafter through 12 mo (telephone)

• Yearly thereafter (in person)

Supplemental oxygen usage reporting

• Logs filled out by participant (could be supplemented by information obtained from oxygen suppliers), from randomization through end of follow-up and collected every 2 mo

– Meter readings (oxygen concentrator)

– Tank counts (gas tanks or liquid tanks)

– Pounds of oxygen delivered (liquid systems)

• Interview report of average daily hours of use in last week, at each adherence promotion contact