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Table 1 Characteristics of female participants at survey, 1998–2002

From: Cross-sectional analysis of adverse outcomes in 1,029 pregnancies of Afro-Caribbean women in Trinidad with and without systemic lupus erythematosus

  Women with SLE (n = 122) Women without SLE (n = 203) P valuea
Age at survey    0.5
   15–24 years 4 (3%) 12 (6%)  
   25–34 years 21 (17%) 31 (15%)  
   35–44 years 39 (32%) 77 (38%)  
   45–54 years 32 (26%) 43 (21%)  
   ≥ 55 years 26 (21%) 40 (20%)  
Mean (standard deviation) age at interview (years) 44.4 (11.6) 43.4 (12.1)  
Education after 18 years 23 (19%) 29 (14%) 0.6
Running water aged 12 years 77 (63%) 149 (73%) 0.05
Ever smoked 10 (8%) 27 (13%) 0.3
Marital status    0.02
   Ever married/cohabited 83 (68%) 161 (79%)  
   Other 39 (32%) 42 (21%)  
Hysterectomy reported at survey 15 (12%) 22 (11%) 0.7
Ever used contraceptive pillb 66 (55%) 100 (51%) 0.5
Ever been pregnant 97 (80%) 184 (91%) 0.002
  1. aFrom chi-squared test for heterogeneity, detecting differences between women with systemic lupus erythematosus (SLE) and those without SLE. bTwo women with SLE and seven women without SLE had missing values for this variable.