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Table 5 Socio-demographic predictors of using multiple forms of contraception prior to an unintended pregnancy amongst women using some form of contraception (n = 963)

From: Exploring the relationship between socioeconomic factors, method of contraception and unintended pregnancy

Variable

Women using a single form of contraception

Women using multiple forms of contraception

Adjusted odds ratio (95 % confidence interval)

N (%, 95 % CI)

N (%, 95 % CI)

Highest level of education completed

   

 Post-secondary

 High school

520 (70.5, 67.1–73.6)

218 (29.5, 26.4–32.9)

158 (70.5, 64.2–76.2)

66 (29.5, 23.8–35.8)

Ref

0.9 (0.6–1.1)

Speaks English in the home

   

 Yes

 No

617 (83.6, 80.7–86.1)

121 (16.4, 13.9–19.3)

193 (86.2, 80.9–90.1)

31 (13.8, 9.9–19.1)

Ref

0.8 (0.61.0)

Low income (household income < $42,000/year)

   

 No

 Yes

460 (65.3, 61.7–68.8)

244 (34.7, 31.2–38.3)

130 (60.2, 53.5–66.5)

86 (39.8, 33.5–46.5)

Ref

1.4 (1.0–1.8)

Marital status

   

 Married/common law

 Single/divorced/widowed

486 (65.9, 62.3–69.2)

252 (34.1, 30.8–37.7)

137 (61.2, 54.6–67.4)

87 (38.8, 32.6–45.4)

Ref

1.2 (0.9–1.6)

Maternal age

   

  ≥ 40 years

 35–39 years

 30–34 years

 25–29 years

 20–24 years

  < 20 years

14 (1.9, 1.1–3.2)

97 (13.2, 11.0–15.9)

189 (25.8, 22.7–29.1)

209 (28.5, 25.4–31.9)

166 (22.6, 19.8–25.8)

58 (7.9, 6.2–10.1)

7 (3.2, 1.5–6.5)

25 (11.3, 7.7–16.2)

45 (20.3, 15.5–26.1)

71 (32.0, 26.1–38.5)

59 (26.6, 21.1–32.8)

15 (6.8, 4.1–10.9)

Ref

0.9 (0.5–1.8)

1.1 (0.6–2.0)

1.2 (0.7–2.3)

1.3 (0.6–2.5)

0.8 (0.3–2.0)

  1. Bolded text indicates statistically significant differences (p < 0.05)
  2. Pseudo R2 = 0.01
  3. Multiple forms of contraception refers to the use of two more types of contraception, even if both methods used had similar efficacy
  4. Adjusted odds ratios were obtained through a multivariate logistic regression model that adjusted for educational attainment, language spoken in the home, household income, marital status, and maternal age