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. 2017 Jun 2;15:118. doi: 10.1186/s12955-017-0692-y

Table 2.

Univariate analysis for risk factors of acute PTSD disease

Risk factors No PTSD n = 165 N (%) Confirmed PTSD n = 6 N (%) OR (95% CI) P a
Demographic characteristics and psycho-social factors
 Age
   < 31 yr 44 (26.7) 2 (33.3) 1 (reference) 0.74†
  ≥ 31 yrs. and <35 yrs 59 (35.8) 2 (33.3) 0.74 (0.10–5.50)
   > 36 yrs 62 (37.6) 2 (33.3) 0.71 (0.09–5.23)
 Pregnancy
  Past pregnancy 105 (63.6) 5 (83.3) 2.85 (0.32–25.0) 0.32
  Past childbirth 86 (52.1) 3 (50.0) 0.91 (0.18–4.68) 0.91
 Origin
  European 138 (83.6) 3 (50.0) 5.1 (1.0–26.6) 0.03
  Non-European 27 (16.4) 3 (50.0)
 Marital Status
  Married/In couple 158 (96.3) 2 (33.3) 0.07 (0.012–0.49) <0.001
  Single 6 (3.7) 4 (66.7)
 Education level parturient (ISCO-88)
  None to second level 73 (49.7) 4 (66.7) 0.49 (0.08–2.77) 0.41
  Third and fourth level 74 (50.3) 2 (33.3)
 Education level partner (ISCO-88)
  None to second level 71 (55.0) 2 (50.0) 1.22 (0.16–8.95) 0.84
  Third and fourth level 58 (45.0) 2 (50.0)
 Insurance
  None or standard 145 (87.9) 5 (83.3) 1.45 (0.16–13.05) 0.73
  High Premium 20 (12.1) 1 (16.7)
Anaesthesia-related procedure characteristics
 Type of anaesthesia
  General 6 (3.6) 0 -
  Spinal 100 (60.6) 5 (83.3) 1.0 (reference) 0.52†
  Spinal-epidural 59 (35.8) 1 (16.7) 0.33 (0.03–2.97)
 Certified anaesthetist 87 (52.7) 3 (50.0) 0.89 (0.17–4.57) 0.89
 Adjuvant to anaesthesia
  Midazolam, clonidine, ketamine 18 (10.9) 1 (16.7) 1.63 (0.18–14.77) 0.65
  Would have liked additional sedation 20 (12.3) 3 (50.0) 7.10 (1.34–37.61) 0.008
 Poor anaesthesia information(before, during, after procedure) 21 (13.0) 1 (16.7) 1.34 (0.14–12.06) 0.79
1st category of factors in PTSD model: Stressful event before or during childbirth
 Unexpected prematurity 24 (14.7) 2 (33.0) 2.8 (0.5–16.6) 0.21
 Emergency caesarean section 88 (53.3) 2 (33.3) 0.43 (0.07–2.45) 0.43
 Long duration of surgery (>50 min) 66 (40.2) 1 (20.0) 0.37 (0.04–3.39) 0.36
 Maternal prepartum complications 97 (58.8) 5 (83,3) 3.50 (0.40–30.67) 0.22
 Intra/postpartum complications 103 (62.4) 5 (83.3) 3.01 (0.34–26.36) 0.29
 Anaesthetic complication 17 (10.3) 2 (33.3) 4.35 (0.74–25.55) 0.07
 Neonatal complication 26 (16.8) 5 (25.0) 1.65 (0.55–4.95) 0.36
2nd category of factors in PTSD model: Subjective appraisal of birth as being possibly traumatic
 Dissociation during C-section (PDEQ score)
  Low /Intermediate degree of dissociation 172 (72.0) 1 (16.1) 12.8 (1.46–13.38) 0.008
  High degree of dissociation 45 (28.0) 5 (83.3)
3rd category of factors in PTSD model:Past morbidity or previous trauma and support from partner
 Past morbidity or previous trauma
  Past psychiatric disorder 18 (11.0) 1 (16.7) 0.3 (0.05–3.1) 0.35
  Past traumatic experience 8 (7.6) 1 (11.1) 3.1 (0.3–31.6) 0.30
  Any other somatic disorder 104 (63.4) 6 (5.5) 1.0 (1.01–1.10) 0.05
  Past pregnancy abortion 76 (46.1) 2 (33.3) 0.58 (0.10–3.28) 0.53
  Past caesarean section 56 (33.9) 3 (50.0) 1.94 (0.38–9.95) 0.41
Support from partner
  During pregnancy 158 (96.9) 6 (100) 1.0 0.63
  During caesarean section 147 (89.6) 6 (100) 1.0 0.43

a Fisher exact test for values < 5

P value for χ2 test for linear trend

P value <0.05 in bold

┐┘P value of Chi square tests for trend