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Table 3 Characteristics of all reported singleton pregnanciesa

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

  Mother ever diagnosed with SLE Mother never diagnosed with SLE
  Pregnancies conceived before mother's SLE diagnosis Pregnancies conceived after mother's SLE diagnosis All pregnancies conceived by mothers ever diagnosed with SLE  
Total number of pregnancies 274 (100%) 78 (100%) 352 (100%) 667 (100%)
Mean (standard deviation) maternal age at conception 25.0 (5.5) 30.1 (5.6) 25.6 (5.8) 26.3 (6.1)
Pregnancy type     
   Live birth 224/274 (81.8%) 33/78 (42.3%) 257/352 (73.0%) 553/667 (82.9)
   Foetal death 47/274 (17.2%) 43/78 (55.1%) 90/352 (25.6%) 109/667 (16.3%)
   First-trimester miscarriage (0–12 weeks)b 28/274 (10.2%) 34/78 (43.6%) 62/352 (17.6%) 90/667 (13.4%)
   Mid-trimester miscarriage (13–23 weeks)b 3/259 (1.2%) 4/49 (8.2%) 7/315 (2.2%) 9/605 (1.5%)
   Miscarriage missing gestation 3/274 (1.1%) 1/78 (1.3%) 4/352 (1.1%) 1/667 (0.1%)
   Stillbirth (≥ 24 weeks)c 13/237 (5.5%) 4/37 (10.8%) 17/274 (6.2%) 9/562 (1.6%)
   Ectopic pregnancy 3/274 (1.1%) 2/78 (2.6%) 5/352 (1.4%) 5/667 (0.7%)
Reported gestation of live births (completed weeks)     
   All pregnancies ending in live birth 224 (100%) 33 (100%) 257 (100%) 553 (100%)
   < 24 weeks 5 (2.2%) 3 (9.1%) 8 (3.1%) 20 (3.6%)
   24–31 weeks 2 (0.9%) 3 (9.1%) 5 (2.0%) 2 (0.4%)
   32–36 weeks 5 (2.2%) 1 (3.0%) 6 (2.3%) 4 (0.7%)
   All preterm (< 37 weeks) 12 (5.4%) 7 (21.2%) 19 (7.4%) 26 (4.7%)
   37–42 weeks 212 (94.6%) 26 (78.8%) 238 (92.6%) 526 (95.1%)
   42–46 weeks 0 (0%) 0 (0%) 0 1 (0.2%)
Reported gestation of foetal deaths (completed weeks)     
   All pregnancies ending in foetal deathb 47 (100%) 43 (100%) 90 (100%) 109 (100%)
   < 8 weeks 17 (36.2%) 25 (58.1%) 42 (46.7%) 63 (57.8%)
   8–12 weeks 11 (23.4%) 9 (20.9%) 20 (22.2%) 28 (25.7%)
   13–15 weeks 2 (4.3%) 0 (0%) 2 (2.2%) 4 (3.7%)
   16–23 weeks 1 (2.1%) 4 (9.3%) 5 (5.6%) 5 (4.6%)
   24–36 weeks 6 (12.7%) 4 (9.3%) 10 (11.1%) 4 (3.7%)
   ≥ 37 weeks 7 (14.9%) 0 (0%) 7 (7.7%) 3 (2.8%)
   Missing gestation category 3 (6.4%) 1 (2.3%) 4 (4.4%) 2 (1.8%)
  1. aTwin pregnancies excluded. bFour pregnancies ending in miscarriage have the gestational age missing (three conceived prior to systemic lupus erythematosus (SLE) diagnosis; one conceived after SLE diagnosis). cOne woman without SLE had missing stillbirth gestation.