Dispositional Affect in Unique Subgroups of Patients with Rheumatoid Arthritis

Table 2

MANCOVA adjusted for years since RA diagnosis between clusters subgroups.

	Cluster 1 mean (SE)	Cluster 2 mean (SE)	Mean difference between Cluster 1 and Cluster 2 (SE)	p
Disability and quality of life
HAQ total	1.08 (0.97)	1.08 (0.97)	0.03 (0.10)	0.749
SF-36 physical functioning	19.63 (0.62)	18.95 (0.49)	0.68 (0.80)	0.540
SF-36 role physical	5.63 (0.18)	5.35 (0.14)	0.29 (0.23)	0.123
SF-36 bodily pain	6.27 (0.23)	6.25 (0.18)	0.02 (0.30)	0.912
SF-36 general health	15.82 (0.30)	15.96 (0.24)	−0.13 (0.39)	0.894
SF-36 vitality	15.08 (0.26)	15.59 (0.20)	−0.52 (0.33)	0.269
SF-36 social function	5.96 (0.31)	6.35 (0.24)	−0.39 (0.40)	0.433
SF-36 role emotional	4.73 (0.15)	4.70 (0.11)	0.03 (0.19)	0.489
SF-36 mental health	20.99 (0.25)	21.33 (0.20)	−0.35 (0.32)	0.331
SF-36 reported health	2.78 (0.10)	2.99 (0.8)	−0.21 (0.12)	0.209
Distress and coping
DASS depression	4.78 (0.34)	2.43 (0.26)	2.4 (0.4)	0.001
DASS anxiety	5.88 (0.39)	3.28 (0.30)	2.6 (0.5)	0.001
DASS stress	5.22 (0.33)	2.60 (0.25)	2.6 (0.4)	0.001
PASS escape avoidance	11.00 (0.62)	8.07 (0.48)	2.9 (0.8)	0.001
PASS cognitive anxiety	11.01 (0.60)	6.74 (0.47)	4.3 (0.8)	0.001
PASS fearful thinking	7.53 (0.61)	3.19 (0.47)	4.3 (0.8)	0.001
PASS physiological anxiety	5.64 (0.46)	2.69 (0.36)	2.9 (0.6)	0.001
PCS rumination	11.20 (0.53)	8.11 (0.41)	3.1 (0.7)	0.001
PCS magnification	6.24 (0.23)	4.43 (0.17)	1.8 (0.3)	0.001
PCS helplessness	11.15 (0.41)	7.92 (0.31)	3.2 (0.5)	0.001

Significant values are shown in bold.
DASS: Depression Anxiety Stress Scale; HAQ-DI: Health Assessment Questionnaire-Disability Index; PASS: Pain Anxiety Sensitivity Scale; PCS: Pain Catastrophizing Scale; RA: rheumatoid arthritis; SE: standard error; SF-36: 36-Item Short Form Health Survey.