Skip to main content

Table 4 Mode of delivery and obstetric data among teenage women with singleton births in the period 1992–2010

From: Deliveries among teenage women – with emphasis on incidence and mode of delivery: a Swedish national survey from 1973 to 2010

  Age groups
  All teenagers < 16 years 16-17 years 18-19 years
Characteristics Crude Adjusted Crude Adjusted Crude Adjusted Crude Adjusted
Spontaneous onset delivery 1.23 (1.19-1.27) 1.17 (1.13-1.21) 1.00 (0.78-1.28) 0.92 (0.72-1.18) 1.27 (1.17-1.38) 1.18 (1.09-1.28) 1.22 (1.17-1.27) 1.17 (1.13-1.22)
Induced delivery 0.90 (0.86-0.93) 0.92 (0.88-0.96) 0.93 (0.68-1.29) 0.95 (0.69-1.32) 0.86 (0.78-0.95) 0.91 (0.82-1.00) 0.90 (0.86-0.95) 0.92 (0.88-0.97)
Normal vaginal delivery 1.29 (1.25-1.33) 1.70 (1.64-1.75) 1.18 (0.92-1.51) 1.61 (1.26-2.06) 1.34 (1.25-1.45) 1.80 (1.66-1.94) 1.28 (1.23-1.33) 1.67 (1.61-1.74)
Forceps 0.88 (0.73-1.06) 0.56 (0.46-0.68) 0.99 (0.25-3.98) 0.67 (0.17-2.68) 0.57 (0.33-0.98) 0.34 (0.19-0.60) 0.95 (0.78-1.17) 0.61 (0.50-0.76)
Vacuum extraction 0.91 (0.87-0.95) 0.59 (0.56-0.62) 0.86 (0.59-1.25) 0.50 (0.34-0.74) 0.88 (0.78-0.98) 0.54 (0.49-0.61) 0.92 (0.87-0.97) 0.60 (0.57-0.63)
CS, all 0.71 (0.69-0.75) 0.61 (0.58-0.64) 0.85 (0.63-1.16) 0.65 (0.47-0.88) 0.70 (0.63-0.77) 0.58 (0.52-0.64) 0.72 (0.68-0.75) 0.61 (0.58-0.64)
CS elective 1999-2010 0.55 (0.50-0.61) 0.57 (0.51-0.63) 1.74 (1.11-2.73) 1.54 (0.96-2.48) 0.52 (0.41-0.66) 0.52 (0.41-0.67) 0.54 (0.48-0.60) 0.56 (0.50-0.63)
CS acute 1999-2010 0.79 (0.73-0.84) 0.62 (0.58-0.67) 0.73 (0.42-1.27) 0.47 (0.27-0.83) 0.83 (0.72-1.07) 0.64 (0.55-0.75) 0.78 (0.72-0.84) 0.62 (0.57-0.67)
GA < 28 weeks 1.93 (1.57-2.37) 1.61 (1.31-2.00) 4.86 (1.81-13.01) 4.44 (1.66-11.92) 2.65 (1.78-3.93) 2.23 (1.48-3.35) 1.71 (1.35-2.17) 1.42 (1.11-1.83)
GA < 32 weeks 1.61 (1.43-1.81) 1.37 (1.21-1.55) 2.46 (1.17-5.20) 2.25 (1.06-4.74) 2.25 (1.78-2.84) 1.90 (1.50-2.41) 1.46 (1.26-1.66) 1.24 (1.07-1.43)
GA < 37 weeks 1.33 (1.27-1.40) 1.14 (1.08-1.20) 2.57 (1.94-3.42) 2.15 (1.60-2.87) 1.53 (1.38-1.70) 1.28 (1.15-1.42) 1.26 (1.20-1.33) 1.09 (1.03-1.15)
GA 37 – 41 weeks 0.91 (0.88-0.95) 1.03 (0.99 -1.06) 0.62 (0.49-0.79) 0.71 (0.55-0.90) 0.83 (0.77-0.89) 0.93 (0.86-1.01) 0.94 (0.91-0.98) 1.06 (1.02-1.10)
GA ≥42 weeks 0.92 (0.88-0.97) 0.85 (0.81-0.89) 0.87 (0.60-1.27) 0.84 (0.57-1.22) 0.96 (0.87-1.07) 0.91 (0.81-1.01) 0.91 (0.87-0.96) 0.84 (0.80-0.89)
Epidural analgesia¥ 1.76 (1.72-1.81) 1.08 (1.05-1.11) 1.80 (1.49-2.18) 1.00 (0.82-1.22) 1.91 (1.81-2.02) 1.10 (1.03-1.16) 1.73 (1.68-1.78) 1.08 (1.05-1.11)
Perineal rupture grade 1-2¥ 0.60 (0.58-0.62) 0.52 (0.50-0.54) 0.66 (0.51-0.86) 0.48 (0.37-0.64) 0.56 (0.52-0.61) 0.47 (0.43-0.52) 0.61 (0.58-0.63) 0.53 (0.51-0.55)
Perineal rupture grade 3-4¥ 0.57 (0.51-0.64) 0.43 (0.38-0.49) 0.52 (0.19-1.39) 0.34 (0.13-0.91) 0.62 (0.47-0.81) 0.45 (0.34-0.59) 0.56 (0.49-0.64) 0.43 (0.37-0.49)
Preeclampsia 1.12 (1.03-1,23) 0.94 (0.86-1.03) 1.64 (0.93-2.91) 1.23 (0.67-2.25) 1.06 (0.86-1.31) 0.92 (0.74-1.14) 1.13 (1.02-1.24) 0.94 (0.85-1.04)
Abruptio placentae 1.31 (1.11-1.55) 1.19 (0.99-1.41) 0.57 (0.08-4.05) 0.59 (0.08-4.17) 1.46 (1.01-2.10) 1.34 (0.93-1.94) 1.29 (1.07-1.56) 1.17 (0.96-1.41)
Placenta praevia 0.34 (0.21-0.55) 0.37 (0.23-0.59) 2.53 (0.63-10.15) 2.72 (0.68-10.93) 0.11 (0.02-0.79) 0.12 (0.02-0.83) 0.35 (0.21-0.60) 0.38 (0.22-0.64)
PPH > 1000 ml (VD) 0.73 (0.67-0.79) 0.70 (0.64-0.76) 0.70 (0.37-1.31) 0.61 (0.33-1.15) 0.76 (0.63-0.91) 0.71 (0.60-0.85) 0.72 (0.66-0.79) 0.70 (0.64-0.76)
PPH > 1000 ml (CS) 0.93 (0.63-1.36) 0.98 (0.66-1.44) N/A N/A 1.74 (0.90-3.38) 1.71 (0.88-3.33) 0.77 (0.48-1.23) 0.75 (0.47-1.20)
  1. Figures denote odds ratios and 95% confidence intervals. Reference group: Maternal age 20-30 years.
  2. CS = Caesarean section; GA = gestational age at delivery; N/A = not applicable; PPH = postpartum haemorrhage; VD = vaginal delivery.
  3. Adjusted for BMI and smoking habits at first antenatal care visit, parity and year of delivery. CS and preeclampsia also adjusted for gestational age.
  4. Caesarean section was subdivided into elective and acute CS from 1999.
  5. ¥ Epidural analgesia and perineal rupture among vaginal delivered women.