Ew. Karlson et al., THE RELATIONSHIP OF SOCIOECONOMIC-STATUS, RACE, AND MODIFIABLE RISK-FACTORS TO OUTCOMES IN PATIENTS WITH SYSTEMIC LUPUS-ERYTHEMATOSUS, Arthritis and rheumatism, 40(1), 1997, pp. 47-56
Objective. To study the relationship of race, socioeconomic status (SE
S), clinical factors, and psychosocial factors to outcomes in patients
with systemic lupus erythematosus (SLE). Methods. A retrospective coh
ort was assembled, comprising 200 patients with SLE from 5 centers, Th
is cohort was balanced in terms of race and SES, Patients provided inf
ormation on socioeconomic factors, access to health care, nutrition, s
elf-efficacy for disease management, health locus of control, social s
upport, compliance, knowledge about SLE, and satisfaction with medical
care, Outcome measures included disease activity (measured by the Sys
temic Lupus Activity Measure), damage (measured by the SLICC/ACR damag
e index), and health status (measured by the SF-36). Results. In multi
variate models that were controlled for race, SES, center, psychosocia
l factors, and clinical factors, lower self-efficacy for disease manag
ement (P less than or equal to 0.0001), less social support (P < 0.005
), and younger age at diagnosis (P < 0.007) were associated with great
er disease activity, Older age at diagnosis (P less than or equal to 0
.0001), longer duration of SLE (P less than or equal to 0.0001), poor
nutrition (P < 0.002), and higher disease activity at diagnosis (P < 0
.007) were associated with more damage, Lower self-efficacy for diseas
e management was associated with worse physical function (P less than
or equal to 0.0001) and worse mental health status (P less than or equ
al to 0.0001). Conclusion. Disease activity and health status were mos
t strongly associated with potentially modifiable psychosocial factors
such as self-efficacy for disease management, Cumulative organ damage
was most highly associated with clinical factors such as age and dura
tion of disease, None of the outcomes measured were associated with ra
ce, These results suggest that education and counseling, coordinated w
ith medical care, might improve outcomes in patients with SLE.