The RADAI consists of:
(1) 3 numerical rating scale questions for disease activity
(2) 1 Likert scale question on joint stiffness
(3) a survey of 16 joints for pain (8 bilateral sites)
Numerical Rating Scale Questions:
(1) In general, how active has you arthritis been over the past 6 months?
(2) In terms of joint tenderness and swelling, how active is your arthritis today?
(3) How much arthritis pain do you feel today?
These questions are scored from 0 to 10, with 0 none to 10 extreme.
Likert Scale Question:
(4) Were your joints stiff when you woke up today? If yes, how long did the extra stiffness last?
|
Duration
|
Points
|
|
none
|
0
|
|
< 30 minutes
|
1
|
|
30 - 60 minutes
|
2
|
|
1 - 2 hours
|
3
|
|
2 - 4 hours
|
4
|
|
> 4 hours but not all day
|
5
|
|
all day
|
6
|
Joint List Question:
(5) Please indicate the amount of pain you are having today in each of the joint areas (16, 8 from each side) listed below:
(5a) left shoulder
(5b) left elbow
(5c) left wrist
(5d) left fingers
(5e) left hip
(5f) left knee
(5g) left ankle
(5h) left toes
(5i) right shoulder
(5j) right elbow
(5k) right wrist
(5l) right fingers
(5m) right hip
(5n) right knee
(5o) right ankle
(5p) right toes
|
Pain
|
Points
|
|
none
|
0
|
|
mild
|
1
|
|
moderate
|
2
|
|
severe
|
3
|
sum score =
= SUM(points for all 16 joints)
Interpretation:
• minimum sum for first 4 questions: 0
• maximum sum for the first 4 questions: 36
• minimum score for joint list: 0
• maximum score for joint list: 48
Differences from RADAR:
(1) fewer joints (8 vs 10 per side)
(2) pain only (not pain and/or tenderness) in joint assessment
(3) disability question not included
