|
Maternal age (years)
|
|
Mean, standard deviation
|
31.2 (4.1)
|
31.2 (3.7)
|
31.3 (4.2)
|
0.9
|
|
Range
|
17–46
|
21–40
|
17–46
| |
|
Parity
|
|
Primiparous
|
626 (64%)
|
59 (69%)
|
567 (63%)
|
0.3
|
|
Multiparous
|
354 (36%)
|
27 (31%)
|
327 (37%)
| |
|
Gestational age at ECV (weeks and days)
|
|
Median
|
35 + 6
|
36 + 0
|
35 + 6
|
0.4
|
|
Range
|
34 + 0–41 + 5
|
34 + 0–38 + 0
|
34 + 2–41 + 5
| |
|
Type of breech
|
|
Non-Frank
|
323 (34%)
|
26 (30%)
|
297 (34%)
|
0.5
|
|
Frank
|
630 (66%)
|
60 (70%)
|
570 (66%)
| |
|
Estimated Fetal Weight (EFW in grams)
|
|
Mean, standard deviation
|
2591 (316)
|
2505 (276)
|
2599 (319)
|
0.009
|
|
Range
|
1700–4000
|
1880–3526
|
1700–4000
| |
|
Fundal height (centimeters)
|
|
Mean, standard deviation
|
32.8 (1.7)
|
32.2 (1.2)
|
32.8 (1.7)
|
0.01
|
|
Range
|
26–40
|
29–35
|
26–40
| |
|
Engagement
|
|
Breech above pelvic inlet
|
481 (50%)
|
35 (41%)
|
446 (51%)
|
0.08
|
|
Breech in pelvic inlet
|
485 (50%)
|
51 (59%)
|
434 (49%)
| |
|
Head palpable
|
|
No
|
64 (7%)
|
4 (5%)
|
60 (7%)
|
0.5
|
|
Yes
|
912 (93%)
|
82 (95%)
|
830 (93%)
| |
|
Placenta location
|
|
Posterior/lateral
|
582 (60%)
|
55 (65%)
|
527 (59%)
|
0.3
|
|
Anterior
|
394 (40%)
|
30 (35%)
|
364 (41%)
| |
|
Amniotic Fluid Index (AFI in cm)
|
|
> 10
|
392 (40%)
|
25 (29%)
|
367 (41%)
|
0.03
|
|
≤ 10
|
586 (60%)
|
61 (71%)
|
525 (59%)
| |
|
Duration ECV (in minutes)
|
|
Median
|
2.50
|
4.15
|
2.45
|
< 0.001
|
|
Range
|
0.15–16.05
|
0.30–16.05
|
0.15–15.45
| |
|
Number of ECV attempts
|
|
Mean, standard deviation
|
2.2 (1.4)
|
2.3 (1.4)
|
2.2 (1.4)
|
0.5
|
|
Range
|
1–7
|
1–6
|
1–7
| |
|
ECV success
|
|
Yes
|
584 (60%)
|
55 (64%)
|
529 (59%)
|
0.4
|
|
No
|
396 (40%)
|
31 (36%)
|
365 (41%)
| |
|
Delivery mode
|
|
Spontaneous vaginal
|
494 (50%)
|
48 (56%)
|
446 (50%)
|
0.3
|
|
Assisted vaginal and caesarean section
|
486 (50%)
|
38 (44%)
|
448 (50%)
| |
|
Gender newborn
|
|
Boy
|
440 (45%)
|
40 (48%)
|
400 (45%)
|
0.6
|
|
Girl
|
537 (55%)
|
44 (52%)
|
493 (55%)
| |
|
Birth weight (grams)
|
|
Median
|
3322
|
3201
|
3325
|
0.009
|
|
Range
|
1700–4705
|
1782–4280
|
1700–4705
| |
