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. 2017 Jun 7;12(6):e0178915. doi: 10.1371/journal.pone.0178915

Table 4. Symptoms of postpartum depression according to characteristics of mothers and labor and maternal, paternal, and neonatal outcomes in women 6 months after midpelvic or low attempted operative vaginal delivery.

Postpartum Depression (N = 211) No-postpartum Depression (N = 603) P value
Maternal and labor characteristics
Maternal age1, (years) 29.2 ± 5.3 29.0 ± 4.6 0.61*
Multiparity, n (%) 49 (23.2) 155 (25.7) 0.47**
BMI ≥ 30 kg/m2 before pregnancy, n (%) 23 (11.0) 25 (4.2) <0.001**
Gestational weight gain >20 kg, n (%) 19 (9.3) 47 (8.1) 0.58**
Previous postpartum depression, n (%) 23 (10.9) 18 (3.0) <0.001**
Gestational age at delivery1 (weeks) 39.4 ± 1.5 39.4 ± 1.4 0.99*
Length of labor1 (min) 396.4 ± 169.0 390.2 ± 165.4 0.64*
2nd stage>3 hours, n (%) 37 (17.5) 101 (16.8) 0.80**
Active phase of 2nd stage > 30 min, n (%) 77 (36.5) 212 (35.2) 0.73**
Epidural analgesia, n (%) 201 (95.3) 576 (95.7) 0.80**
Persistent occiput position, n (%) 0.15**
Anterior 183 (87.1) 538 (89.5)
Posterior 17 (8.1) 50 (8.3)
Transverse 10 (4.8) 13 (2.2)
ACOG classification, n (%) 0.37**
Mid 43 (20.4) 106 (17.6)
Low 168 (79.6) 497 (82.4)
Obstetrician performing delivery, n (%) 0.32**
Senior obstetrician 51 (24.8) 169 (28.3)
Obstetric registrar 155 (75.2) 428 (71.7)
Instrument type, n (%)
Vacuum 60 (28.4) 161 (26.7) 0.63**
Forceps 18 (8.5) 34 (5.6) 0.14**
Spatula 140 (66.4) 421 (69.8) 0.35**
Sequential use of two instruments 6 (2.8) 14 (2.3) 0.67***
Indications for aOVD, n (%) 0.47**
Non-reassuring FHR only 88 (41.7) 261 (43.3)
Arrested progress only 84 (39.8) 248 (41.0)
Non-reassuring FHR and arrested progress 41 (19.4) 95 (15.7)
Maternal outcome
Cesarean delivery after failed operative vaginal delivery, n (%) 4 (1.9) 12 (2.0) 0.93***
Episiotomy, n (%) 181 (85.8) 532 (88.4) 0.32**
3rd or 4th-degree perineal lacerations, n (%) 6 (2.8) 20 (3.3) 0.73**
PPH (blood loss>500mL), n (%) 34 (16.1) 114 (18.9) 0.37**
Severe PPH (blood loss>1500 mL), n (%) 6 (2.8) 14 (2.3) 0.67***
Abscesses/hematoma requiring surgery, n (%) 1 (0.5) 2 (0.3) 0.77***
Severe maternal morbidity, n (%) 17 (8.1) 53 (8.8) 0.74**
Neonatal outcome
Birth weight > 4000 g, n (%) 15 (7.4) 32 (5.3) 0.33**
Neonatal trauma, n (%) 2 (1.0) 3 (0.5) 0.47***
Transfer to NICU, n (%) 9 (4.3) 33 (5.5) 0.49**
Severe neonatal morbidity, n (%) 18 (8.5) 62 (10.3) 0.46**
Registered variables at 6 months postpartum
Tobacco (male), n (%) 71 (43.8) 180 (37.3) 0.14**
Chronic disease (male), n (%) 11 (6.8) 27 (5.6) 0.57**
Breastfeeding, n (%) 129 (90.8) 377 (94.0) 0.20**
Pelvic floor muscle training, n (%) 157 (77.3) 481 (80.0) 0.41**
Child in the parents’ bedroom during night, n (%) 19 (11.9) 54 (11.2) 0.82**
Episiotomy complications, n (%) 119 (62.0) 349 (61.9) 0.98**
Perineal pain, n (%) 36 (17.8) 73 (12.2) 0.04**
Dyspareunia, n (%) 69 (37.3) 177 (31.8) 0.31**
PISQ-12 in sexually active women1 34.5 ± 7.9 38.1 ± 6.0 <0.001*
IIEF-15 in sexually active men1 60.3 ± 14.3 64.5 ± 9.2 <0.001*

1 Values are given as mean ± standard deviation.

* Student t test,

** χ2 test,

*** Fisher exact test. Statistical significance was defined as a P value < 0.05.

EPDS: Edinburgh Postnatal Depression Scale [31]. PISQ-12: Pelvic Organ Prolapse Urinary Incontinence Sexual Questionnaire [28]. IIEF-15: International Index of Erectile Function [35].