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Table 1 Mode of delivery in twin births during 1987–2014 in Finland. The number of elective CSa is available from 1991, breech deliveries and urgent CS from 1996. The figures are expressed at three-year intervals from 1991 to 2012; also the first year 1987 and last year 2014 included

From: Maternal complications in twin pregnancies in Finland during 1987–2014: a retrospective study

Year Elective CS % All CS B % b Urg CS A % c Urg CS B % Vacuum extraction A % Vacuum Extraction B % Forceps A % Forceps B % Breech A % Breech B % Vag. + CS combined % d
1987   41.6    3.7 3.3 0.3 0.3    2.3
1991 21.3 40.3 16.8 19.1 4.5 5.2 0.5 0.5    2.3
1994 23.7 47.3 21.2 23.6 4.2 4.1 0.2 0.2    2.4
1997 23.2 48.6 24.2 25.5 5.2 4.5 0.0 0.1 2.2 8.6 1.3
2000 21.1 45.3 24.2 24.1 3.8 3.7 0.1 0.0 2.9 8.5 0.0
2003 22.0 45.8 24.0 23.7 5.1 5.5 0.1 0.1 1.6 8.2 0.0
2006 19.1 49.5 27.9 30.3 8.3 8.2 0.0 0.0 1.2 9.7 2.4
2009 20.9 49.9 27.1 28.9 9.9 9.5 0.1 0.0 4.2 9.1 1.9
2012 17.8 48.2 27.1 30.5 9.6 8.9 0.0 0.1 1.9 9.9 3.4
2014 17.8 47.2 26.9 29.4 9.9 9.1 0.1 0.1 3.0 10.9 2.5
  1. aCesarean section
  2. b the percentage of all CS in twin deliveries
  3. c the percentage of urgent (urg) CS in twin deliveries (A and B separately)
  4. d the percentage of twin deliveries where twin A is born vaginally (vag) and twin B via urgent CS