Research Article

Dispositional Affect in Unique Subgroups of Patients with Rheumatoid Arthritis

Table 1

Demographic and clinical characteristics of study sample and cluster subgroups.

Study populationCluster 1Cluster 2p (between clusters)

22785142
Mean age (SD)57.8 (14.4)58.3 (14.7)57.5 (14.4)0.672
Sex (male %)24.324.724.10.512
Mean years of education (SD)13.0 (3.3)12.5 (3.6)13.3 (3.1)0.094
Mean years since RA diagnosis13.2 (11.0)15.7 (12.2)11.6 (9.9)0.006
Relationship status (%)0.841
 Single11.19.512.1
 Married or in a serious relationship74.776.273.8
 Divorced, separated, widowed14.214.314.2
Average pain intensity3.8 (2.2)4.0 (2.0)3.7 (2.3)0.092
AAQ (SD)28.3 (7.5)32.7 (6.1)25.7 (7.0)0.001
RRAQ (SD)12.8 (5.4)17.0 (5.8)10.2 (3.1)0.001
ASI total (SD)15.2 (10.8)23.8 (10.8)10.0 (6.9)0.001
FMPS total 74.0 (16.0)86.1 (13.9)66.7 (12.5)0.001
PSWQ (SD)40.9 (12.9)51.2 (12.4)34.7 (8.9)0.001

Significant values are shown in bold.
AAQ: Acceptance and Action Questionnaire; ASI: Anxiety Sensitivity Index; FMPS: Frost Multidimensional Perfectionism Scale; HAQ: Health Assessment Questionnaire; PSWQ: Penn State Worry Questionnaire; RRAQ: Reactions to Relaxation and Arousal; SD: standard deviation.