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Table 1 Characteristics of women (1) with ECV at or near term, (2) without ECV but eligible for ECV, and (3) ineligible for ECV (N = 32,321)

From: Uptake of external cephalic version for term breech presentation: an Australian population study, 2002–2012

Characteristic

ECV at or near Term n = 3382

No ECV but Eligible n = 21,729

No ECV and Ineligible n = 7210

Difference between ECV and Eligible groups

n(col%)

n(col%)

n(col%)

Test statistic, p-value

Gestational age at ECV

   

-

 36 weeks

1055 (31.2)

-

-

 37 weeks

1239 (36.6)

  

 38 weeks

646 (19.1)

  

 39 weeks

266 (7.9)

  

  ≥ 40 weeks

176 (5.2)

  

Maternal age (mean, SD)

31.6 (5.1)

30.5 (5.4)

32.5 (5.2)

t(4637.8) = 11.56, p < 0.01

  ≤ 20 years

50 (1.5)

652 (3.0)

71 (1.0)

X2 (3)=88.60, p < 0.01

 20–35 years

2312 (68.4)

15,976 (73.5)

4468 (62.0)

  ≥ 35 years

1019 (30.1)

5096 (23.5)

2670 (37.0)

Parity

   

X2 (1)=235.12, p < 0.01

 Nulliparous

1819 (53.8)

14,600 (67.3)

1219 (16.9)

 Multiparous

1562 (46.2)

7100 (32.7)

5990 (83.1)

Country of birth

   

X2 (1)=128.15, p < 0.01

 Australia

2052 (60.7)

15,286 (70.4)

5067 (70.3)

 Elsewhere

1330 (39.3)

6443 (29.7)

2143 (29.7)

Smoking during pregnancy

278 (8.2)

2497 (11.5)

882 (12.2)

X2 (1)=31.87, p < 0.01

Morbid obesity

14 (0.4)

189 (0.9)

135 (1.9)

X2 (1)=7.58, p < 0.01

Hypertensive disorder

198 (5.9)

2075 (9.6)

1019 (14.1)

X2 (1)=48.53, p < 0.01

Diabetes

257 (7.6)

1627 (7.5)

834 (11.6)

X2 (2)=0.05, p = 0.82

Patient type at delivery

   

X2 (2)=239.15, p < 0.01

 Private

623 (18.4)

6543 (30.1)

2174 (30.2)

 Private patient in public hospital

132 (3.9)

1246 (5.7)

475 (6.6)

 Public

2627 (77.7)

13,940 (64.2)

4561 (63.3)

Delivery hospital

   

X2 (2)=725.25, p < 0.01

 Tertiary hospital in Urban area

1550 (45.8)

5520 (25.4)

2033 (28.2)

 Non-tertiary hospital in Urban area

1524 (45.1)

11,216 (51.6)

3584 (49.7)

 Non-tertiary hospital in Regional area

308 (9.1)

4993 (23.0)

1593 (22.1)

  1. Note: Percentages may not add exactly to 100% due to <0.1% missing data