Table 2: Demographic characteristics, disease duration, and followup of NPSLE and non-NPSLE patients.

CharacteristicsNPSLE
  (%)
Non-NPSLE
  (%)

Female18 (82)70 (92)
Male4 (18)6 (8)
Female : male ratio4,511,7
Age, mean ± SD (y)
Caucasian17 (77)68 (89)
Non-Caucasian5 (23)8 (11)
Portugal18 (82)66 (87)
Portuguese speaking Africa4 (18)8 (11)
Brazil02 (3)
Single9 (41)30 (39)
Nonsingle13 (59)46 (61)
Progeny6 (27)41 (54)
Postsecondary education 8 (36)33 (43)
Disease duration, mean ± SD (years)
Followup, mean ± SD (years)