Laboratory findings: Active PRL vs. Nonpregnant active SLE.

Data are depicted as mean ± standard deviation; median, interquartile range; or number (%). PRL: pregnancy-related lupus. SLE: systemic lupus erythematosus. a-PRL: active lupus during pregnancy and puerperium. n-PRL: new-onset lupus during pregnancy and puerperium. f-PRL: flare of established lupus during pregnancy and puerperium. ESR: erythrocyte sedimentation rate. ACL: anticardiolipin antibody. $: n-PRL vs. Nonpregnant active SLE, p<0.05. Δ: n-PRL vs. f-PRL, p<0.05.