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Table 1 Univariate analysis of factors associated with women at risk for unintended pregnancy

From: Contraception matters: indicators of poor usage of contraception in sexually active women attending family planning clinics in Victoria, Australia

Explanatory variable

At risk for unintended pregnancy

Not at risk for unintended pregnancy

Odds ratio

 

n

%

n

%

Estimate

Confidence interval

p value

DEMOGRAPHICS DOMAIN

Age

<25 years old (vs. >25 years old)

297

80

380

63

2.4

1.8, 3.3

<0.0001

Birthplace

Born in Australia (vs. Born overseas)

286

77

435

72

1.3

1.0, 1.8

0.056

Time in Australia

 <5 years (vs. >5 years)

39

11

78

13

0.8

0.5, 1.2

0.286

Language at home

 English (vs. non-English)

331

90

551

91

0.8

0.5, 1.3

0.407

SOCIAL NORMS DOMAIN

Discussion of contraception with doctor

 Comfortable (vs. not comfortable)

336

93

561

94

0.9

0.5, 1.5

0.614

Discussion of contraception with parents

 Comfortable (vs. not comfortable)

105

38

165

45

0.7

0.5, 1.0

0.066

Discussion of contraception with partner

Comfortable (vs. not comfortable)

292

89

528

95

0.4

0.2, 0.7

<0.0001

Discussion of contraception with friends

 Comfortable (vs. not comfortable)

311

92

500

91

1.2

0.7, 1.9

0.557

Contraceptive support from parents

 Supportive (vs. not supportive)

193

69

273

72

0.9

0.6, 1.2

0.379

Contraceptive support from partner

Supportive (vs. not supportive)

295

85

556

94

0.3

0.2, 0.5

<0.0001

Contraceptive support from friends

Supportive (vs. not supportive)

335

95

531

91

1.8

1.1, 3.1

0.029

SOCIAL CIRCUMSTANCES DOMAIN

SEIFA (decile group)

     

χ2 2 = 1.8, p =0.404

 1-5

33

9

69

11

reference

-

 

 6-8

82

22

140

23

1.2

0.8, 2.0

0.424

 9-10

253

69

394

65

1.3

0.9, 2.1

0.193

Health Care Card

Yes (vs. no)

150

41

192

32

1.5

1.1, 2.0

0.004

Private Health Insurance

 Yes (vs. no)

170

46

293

49

0.9

0.7, 1.2

0.508

Annual Household income

>$60,000 (vs. <$60,000)

99

34

215

43

0.7

0.5, 0.9

0.017

INFORMATION DOMAIN

Highest Education completed

University/PostGraduate (vs. no University/Post graduate)

91

25

244

40

0.49

0.4, 0.7

<0.0001

Confident in knowledge of pregnancy prevention

Yes (vs. No)

314

85

575

95

0.32

0.2, 0.5

<0.0001

pAST EXPERIENCES DOMAIN

Ever pregnant

Yes (vs. No)

73

20

173

29

0.6

0.5, 0.9

0.003

Ever unintended pregnancy

 Yes (vs. No)

59

16

117

19

0.8

0.6, 1.1

0.212

Ever full term

Yes (vs. No)

17

5

46

8

0.6

0.3, 1.1

0.072

Ever miscarriage

 Yes (vs. No)

14

4

21

4

1.1

0.6, 2.2

0.778

Ever abortion

 Yes (vs. No)

38

10

80

13

0.8

0.5, 1.2

0.195

BELIEFS DOMAIN

Feel vulnerable to pregnancy

Yes (vs. No)

193

50

187

32

2.5

1.9, 3.2

<0.0001

Satisfied with contraception

Yes (vs. No)

154

42

440

73

0.3

0.2, 0.4

<0.0001

CUE TO ACTION DOMAIN

Health professional has spoken about contraception in last 12 months

 Yes (vs. No)

258

74

450

76

0.9

0.6, 1.2

0.319

Used >1 contraception in last 3 months

Yes (vs. No)

99

27

231

38

0.6

0.5, 0.8

<0.0001

>1 partner in the last 3 months

Yes (vs. No)

153

43

114

19

3.1

2.3, 4.2

<0.0001

Frequency of sex in the last 3 months

2-4 times/week or daily (vs. 2-4 times/month or less)

153

43

114

19

3.1

2.3, 4.2

<0.0001

CONTRACEPTIVE SELF EFFICACY DOMAIN

Plan ahead to have some form of contraception

Yes (vs. no)

318

87

571

96

0.3

0.2, 0.5

<0.0001

Stop to use contraception once aroused

Yes (vs. no)

219

60

476

80

0.4

0.3, 0.5

<0.0001

Resist sex if partner did not want to use contraception

Yes (vs. no)

179

49

428

72

0.4

0.3, 0.5

<0.0001

  1. Texts are bolded if p value <0.1.