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. 2023 Nov 25;44(1):129–143. doi: 10.1007/s00296-023-05487-z

Table 4.

Five most prevalent ICF categories identified in people with RA or axSpA and severe functional disability, in total and by PSC activity

RA (N = 206)
Ranking ICF code Total three PSC activities
(N = 909 ICF categories)
Number of ICF categories (%)
1 d4501 Walking long distances 121 (13.3)
2 d4502 Walking on different surfaces 79 (8.7)
3 d451 Stair climbing 62 (6.8)
4 d4103 Changing basic body position: sitting 60 (6.6)
5 d4401 Grasping 51 (5.6)
Ranking ICF code PSC activity 1
(N = 316 ICF categories)
Number of ICF categories (%)
1 d4501 Walking long distances 75 (23.7)
2 d4502 Walking on different surfaces 47 (14.9)
3 d4500 Walking short distances 33 (10.4)
4 d4401 Grasping 14 (4.4)
5 d4103 Changing basic body position: sitting 12 (3.8)
Ranking ICF code PSC activity 2
(N = 294 ICF categories)
Number of ICF categories (%)
1 d4501 Walking long distances 28 (9.5)
2 d451 Stair climbing 25 (8.5)
3 d4103 Changing basic body position: sitting 20 (6.8)
4 d4750 Driving human-powered transportation 19 (6.4)
5 d4401 Grasping 18 (6.1)
Ranking ICF code PSC activity 3
(N = 299 ICF categories)
Number of ICF categories (%)
1 d4103 Changing basic body position: sitting 28 (9.4)
2 d451 Stair climbing 27 (9.0)
3 d4402 Manipulating 20 (6.7)
4 d4401 Grasping 19 (6.4)
5 d4501 Walking long distances 18 (6.0)
AxSpA (N = 155)
Ranking ICF code Total three PSC activities
(N = 759 ICF categories)
Number of ICF categories (%)
1 d4501 Walking long distances 92 (12.1)
2 d4154 Maintaining a standing position 60 (7.9)
3 d4105 Changing basic body position: bending 44 (5.8)
4 d4502 Walking on different surfaces 43 (5.7)
5 d4300 Lifting 42 (5.5)
Ranking ICF code PSC activities 1
(N = 247 ICF categories)
Number of ICF categories (%)
1 d4501 Walking long distances 50 (20.2)
2 d4502 Walking on different surfaces 22 (8.9)
3a d4154 / Maintaining a standing position / 17 (6.9)
d451 Stair climbing 17 (6.9)
5a d4300 / Lifting / 10 (4.0)
d4153 Maintaining a sitting position 10 (4.0)
Ranking ICF code PSC activities 2
(N = 253 ICF categories)
Number of ICF categories (%)
1 d4154 Maintaining a standing position 30 (11.9)
2a d4105 / Changing basic body position: bending 19 (7.5)
d4501 Walking long distances 19 (7.5)
4 d4401 Grasping 16 (6.3)
5 d4750 Driving human-powered transportation 14 (5.5)
Ranking ICF code PSC activities 3
(N = 259 ICF categories)
Number of ICF categories (%)
1 d4501 Walking long distances 23 (8.9)
2 d4300 Lifting 20 (7.7)
3a d6200 / Shopping 16 (6.2)
d4105 Changing basic body position: bending 16 (6.2)
5 d4103 Changing basic body position: sitting 15 (5.8)

axSpA axial spondyloarthritis; ICF International Classification of Functioning, Disability and Health; PSC patient specific complaints instrument; RA rheumatoid arthritis

aShared ranking in top-5 due to same reported number