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Table 1 Characteristics of women with late stillbirth compared with gestation matched controls

From: Relationship between obesity, ethnicity and risk of late stillbirth: a case control study

 

Cases

Controls

Univariable OR

95% CI

 

n = 155

(%)

n = 310

(%)

  

Maternal age

      

   <20

10

(6.5)

24

(7.7)

0.80

0.38-1.71

   20-34

113

(72.9)

216

(69.7)

1.00

-

   ≥ 35

32

(20.7)

70

(22.6)

0.86

0.53-1.42

Maternal ethnicity

      

   Maori

19

(12.3)

46

(14.8)

1.08

0.57-2.04

   Pacific

48

(31.0)

67

(21.6)

1.88

1.13-3.13

   European

55

(35.5)

139

(44.8)

1.00

-

   Other

33

(21.3)

58

(18.7)

1.46

0.85-2.51

Country of birth

      

   New Zealand

83

(53.6)

168

(54.2)

1.00

-

   Other

72

(46.5)

142

(45.8)

1.03

0.69-1.54

Marital status

      

   Married

84

(54.2)

202

(65.2)

1.00

-

   Not married

71

(45.8)

108

(34.8)

1.60

1.07-2.38

Deprivation Index

      

   1-4

91

(58.7)

218

(70.3)

1.00

-

   5 (most deprived)

64

(41.3)

92

(29.7)

1.74

1.14-2.67

School leaving age

      

   <17 years

36

(23.2)

56

(18.1)

1.37

0.85-2.18

   ≥17

119

(76.8)

254

(81.9)

1.00

-

Employment in last month

      

   Paid work

41

(26.5)

118

(38.1)

1.00

-

   Not in paid work

114

(73.6)

192

(61.9)

1.75

1.13-2.70

Parity

      

   0

77

(49.7)

144

(46.5)

1.41

0.94-2.13

   1-3

62

(40.0)

156

(50.9)

1.00

-

   ≥4

16

(10.3)

10

(3.2)

5.13

1.99-13.21

BMI

      

   < 25

55

(35.5)

156

(50.3)

1.00

-

   25-29.9

39

(25.2)

67

(21.6)

1.69

1.03-2.78

   ≥ 30

61

(39.4)

87

(28.1)

2.08

1.30-3.33

Ethnic specific BMI groups

      

   Normal/underweight

57

(36.8)

151

(48.7)

1.00

-

   Overweight

44

(28.4)

81

(26.1)

1.46

0.91-2.35

   Obese

54

(34.8)

78

(25.2)

1.91

1.18-3.09

Smoking in pregnancy

      

   Smoke-free

80

(51.6)

201

(64.8)

1.00

 

   Passive only

29

(18.7)

43

(13.9)

1.67

0.99 - 2.83

   Smoker

46

(29.7)

66

(21.3)

1.78

1.11 - 2.85

Recreational drugs

      

   No drug use

142

(91.6)

298

(96.1)

1.00

-

   Any drug use

13

(8.4)

12

(3.9)

2.35

1.02 - 5.42

Previous preterm birth

      

   Yes

11

(7.10)

15

(4.84)

1.52

0.67 - 3.43

   No

144

(92.80)

295

(95.16)

1.00

-

Previous small for gestational age

      

   Yes

12

(7.74)

15

(4.84)

1.60

0.75 - 3.42

   No

143

(92.26)

295

(95.16)

1.00

-

Previous stillbirth

      

   Yes

2

(1.29)

3

(0.97)

1.33

0.22 - 7.98

   No

152

(98.71)

307

(99.03)

1.00

-