To test if lupus activity and damage predict physical function and gen
eral health in lupus was the objective of this study. Ninety-six patie
nts with lupus were seen at baseline and monthly for 4 months. Sociode
mographic characteristics and lupus damage (SLICC/ACR DI), were collec
ted at baseline while lupus activity (SLAM-R, SLEDAI), health status m
easures (HAQ, SF-36(TM)) and immunological tests were collected at eac
h visit. Associations of lupus activity and damage with general health
and physical function were evaluated. Baseline health status measures
were greatly impaired and comparable to those of severe medical illne
sses. In cross-sectional analyses, baseline activity score measured by
SLAM-R, but not by SLEDAI, correlated with most subscales of SF-36(TM
) Baseline damage score SLICC/ACR DI correlated only with the HAQ and
the physical function subscale of SF-36(TM). Differences in both activ
ity measures (SLAM-R and SLEDAI) over time correlated with change in h
ealth status measures while baseline cumulative damage (SLICC/ACR DI)
correlated with the average level of physical function only. Lupus act
ivity measures, SLAM-R and SLEDAI, although differing cross-sectionall
y, both reflected patients' health status performance over time and lu
pus damage measure, SLICC/ACR DI, performed well in assessing physical
function. Lupus patients scores for health are poor and comparable to
those found in severe medical illnesses.