. 2017 May 29;20(4):515–523. doi: 10.1007/s00737-017-0729-6

Table 1.

Characteristics of the participants (n = 2192) compared to the reference group

Characteristic	Participants n (%) or mean{SD}	95% Confidence interval	Dutch perinatal registry^a
Age (n = 2192)
At time of survey	33.1 {5.5}
At time of (traumatic) birth	29.6 {4.4}^*		31.0 yr {4.9}
Gestational age at time of traumatic childbirth
16–32 weeks	133 (6.1)		>22 wks: 1.5^b
32–37 weeks	243 (11.1)^*	9.8–12.4	6.1
37–42 weeks	1688 (77.0)^*	75.2–78.8	89.8
>42 weeks	127 (5.8)^*	4.8–6.8	1.3
Unknown	N/A		1.3
Years since traumatic childbirth
<2 years	999 (45.6)
2–5 years	684 (31.2)
5–12 years	509 (23.2)
Ethnicity (n = 2192)
Dutch	2004 (91.4)^*	90.2–92.6	74.3
Not Dutch	188 (8.6)^*	7.4–9.8	25.7
Parity at time of survey (n = 2178)
Mean parity	1.66 {0.8}^*		1.71^c
Parity at time of traumatic birth experience (n = 2178)
Primiparous	1737 (79.8)^*	78.1–81.5	45.2
Multiparous	441 (20.2)^*	18.5–21.9	54.8
Responsible caregiver during pregnancy (n = 2180)
Midwife	1146 (52.6)	50.5–54.7	50.7
Obstetrician	345 (15.8)	14.3–17.3	14.6
Both (referral from primary to secondary care during pregnancy)	677 (31.1)^*	29.2–33.0	34.7
Mode of delivery (n = 2176)
Spontaneous vaginal delivery	919 (42.2)^*	40.1–44.3	74.9
Operative vaginal delivery	577 (26.5)^*	24.6–28.4	8.7
Secondary cesarean section	627 (28.8)^*	26.9–30.7	8.6
Primary cesarean section	53 (2.4)^*	1.8–3.0	7.8
Responsible caregiver during delivery (n = 2147)
Midwife (primary care)	122 (5.7)^*	4.7–6.7	27.4
Obstetrician-led (secondary care)	1098 (51.1)	49.0–53.2	49.4
Both^d (referral during labor or directly postpartum)	927 (43.2)^*	41.1–45.3	23.2

^*Significantly different from Dutch perinatal registry, p ≤ 0.05

^aSource, unless otherwise specified: Dutch Perinatal Registry (Brouwers 2014)

^bData collection starts at 22 weeks gestation, so no data between 16 and 22 weeks are known

^c“Mean parity” (CBS 2014)

^dReferral from primary to secondary care