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Table 2 Gestational age at booking stratified by maternal ethnicity

From: Predictors of the timing of initiation of antenatal care in an ethnically diverse urban cohort in the UK

Self-defined ethnicity Gestational age at booking (weeks) Total
  Median Up to 12 13 to 19 20 or more  
  (LQ, UQ) (+6 days) (+6 days)   
British (White) 10 2,768 735 372 3,875
(9, 13) 71.4% 19.0% 9.6%
African 12 1,499 802 414 2,715
(except Somali) (10, 16) 55.2% 29.5% 15.2%
Somali 13 214 169 97 480
(10, 18) 44.6% 35.2% 20.2%
Caribbean 11 375 157 59 591
(9, 14) 63.5% 26.6% 10.0%
Eastern European 12 1,438 699 394 2,531
(9, 16) 56.8% 27.6% 15.6%
Other White 11 257 94 44 395
(9, 14) 65.1% 23.8% 11.1%
Bangladeshi 11 1,769 794 304 2,867
(incl. British) (9, 15) 61.7% 27.7% 10.6%
Indian 11 1,200 460 182 1,842
(incl. British) (9, 14) 65.1% 25.0% 9.9%
Pakistani 11 2,018 743 348 3,109
(incl. British) (9, 14) 64.9% 23.9% 11.2%
Other Asian 12 586 251 120 957
(10, 15) 61.2% 26.2% 12.5%
Other 12 414 185 86 685
(10, 15) 60.4% 27.0% 12.6%
Overall 11 12,538 5,089 2,420 20,047
  (9,15) 62.5% 25.4% 12.1%  
  1. LQ, Lower (25th) quartile; UQ, upper (75th) quartile.