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Table 3 Uptake of routine ultrasound examination, Combined Ultrasound and Biochemical test (CUB), Chorionic Villus Sampling (CVS) and Amniocentesis (AC) during 2011 to 2013, and test of trenda

From: Prenatal diagnosis in Sweden 2011 to 2013—a register-based study

Variable Total 2011 2012 2013   Trenda
  N = 284,789   n = 88,140   n = 96,043   n = 100,606   
  n % n % n % n %  
Ultrasound 281,562 98.9 85,561 97.1 97,500 99.6 100,310 99.7  
 Yes 274,899 97.6 83,549 97.6 93,386 97.6 97,964 97.7 0.716
 No 6663 2.4 2.012 2.4 2314 2.4 2337 2.3  
CUB 278,230 98.0 84,827 96.2 94,900 98.8 99,503 98.9  
 Yes 92,207 33.0 25,316 29.8 30,826 32.5 36,065 36.2 <0.001
 No 187,023 67.0 59,511 70.2 64,074 67.5 63,438 63.8  
CVS 280,898 98.6 85,308 96.8 95,465 99.4 100,125 99.5  
 Yes 2983 1.1 868 1.0 927 1.0 1188 1.2 <0.001
 No 277,915 98.9 84,440 99.0 94,538 98.8 98,937 98.8  
AC 280,667 98.6 85,213 99.3 95,395 99.3 100,059 99.5  
 Yes 7318 2.6 2500 2.9 2473 2.6 2345 2.3 <0.001
 No 273,349 97.4 82,713 97.1 92,922 97.4 97,714 97.7  
  1. aTest of trend by Linear-by-Linear Association