Table 1

Attributes and levels

Health outcomes:
Change in pain between appointments (pain)No reduction, small reductionNo=0, small=1
Process attributes:
The medical staff you see (staff)Junior doctor, specialist nurseJunior doctor=0, specialist nurse=1
Time in waiting area (wait)Up to 10, 20, 30 minutes10, 20, 30
Continuity of contact with same staff (continuity)No, yesNo=0, yes=1
Phone-in/advice line service (phone)No, yesNo=0, yes=1
Length of consultation (length)10, 15, 20, 25 minutes10, 15, 20, 25