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Table 2 Reported pregnancy histories at the time of survey among women who had ever been pregnant

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

  Ever pregnant women with SLE (n = 97) Ever pregnant women without SLE (n = 184) P valuea
Total number of reported pregnancies per woman    0.50
   1 13 (13%) 20 (11%)  
   2 20 (21%) 36 (20%)  
   3 21 (22%) 47 (26%)  
   4 19 (20%) 29 (16%)  
   5 10 (10%) 23 (13%)  
   ≥ 6 14 (14%) 29 (15%)  
Mean (standard deviation) number of pregnancies 3.7 (2.0) 3.7 (2.4)  
Mean (standard deviation) age at first pregnancy (years) 22.1 (4.8) 22.5 (4.8) 0.55
Ever had a live birth – total number of live births reported per woman    0.12
   0 7 (7%) 2 (1%)  
   1 20 (21%) 34 (18%)  
   2 22 (23%) 40 (22%)  
   3 24 (25%) 51 (28%)  
   4 11 (11%) 25 (14%)  
   ≥ 5 13 (13%) 32 (17%)  
Median (P5–P95)b live births 2.5 (0–5) 3 (1–5)  
Ever miscarried – total number of miscarriagesc reported per woman    0.07
   0 51 (53%) 125 (68%)  
   1 30 (31%) 35 (19%)  
   2 11 (11%) 15 (8%)  
   ≥ 3 5 (5%) 9 (5%)  
Median (P5–P95)b miscarriagesc 0.5 (0–3) 0 (0–3)  
Ever had a stillbirth – total number of stillbirths reported per woman    0.01
   0 86 (89%) 175 (95%)  
   1 7 (7%) 9 (5%)  
   ≥ 2 4 (4%) 0  
Median (P5–P95)b stillbirths 0 (0–1.25) 0 (0–0.75)  
Ever had an ectopic pregnancy    0.17
   0 92 (95%) 180 (98%)  
   1 5 (5%) 3 (2%)  
   ≥ 2 0 1 (0.5%)  
Median (P5–P95)b ectopic 0 (0–1) 0 (0–0)  
Women with a SLE diagnosis only    
First pregnancy before SLE diagnosis 78 (80%) - -
First pregnancy after SLE diagnosis 19 (20%)   
Age (years) at first pregnancy    
   Mean (standard deviation) age at first pregnancy if before SLE diagnosis 22.1 (4.6) - -
   Mean (standard deviation) age at first pregnancy if after SLE diagnosis 26.6 (7.0)   
Number of reported pregnancies per woman    
   Mean (standard deviation) pregnancies whose first conception was before SLE diagnosis 3.7 (2.1) - -
   Mean (standard deviation) pregnancies whose first conception was after SLE diagnosis 3.6 (2.7)   
  1. aFrom chi-squared test for heterogeneity, detecting differences between women with systemic lupus erythematosus (SLE) and those without SLE. bFifth to 95th centiles – the central 90% of the distribution. c Includes missed abortions (missed miscarriages) and blighted ova.