Table 4 Multivariate results of the determinants of contraceptive use among women in slum and non-slum settings of Nairobi, Kenya

Unintended pregnancy [Ref: No]

  Yes

1.41

0.030*

1.53

0.034*

0.84

0.458

Study site [Ref: Slum]

  Non-slum

1.50

0.012*

Household wealth [Ref: Low (Poor)]

  Middle

0.96

0.785

  High (Rich)

0.81

0.160

Education [Ref: None/primary]

  Secondary

1.14

0.371

  Tertiary

1.08

0.716

Household size [Ref: 1–2]

  3-5

1.24

0.323

  6+

1.60

0.047*

Age [Ref: 35–49]

1.00

  <25

2.59

0.000***

  25-34

2.48

0.000***

Marital status [Ref: Never married]

1.00

  Formerly married

1.06

0.237

  Currently married

2.71

0.000***

Ethnicity [Ref: Kikuyu]

  Luya

0.85

0.344

  Luo

0.91

0.623

  Kamba

0.92

0.614

  Others

0.69

0.067^†

Time since last birth/end of pregnancy [Ref: <18 months]

  18-35 months

1.05

0.769

  36-59 months

0.89

0.463

Interaction: Unintended pregnancy and slum/non-slum residence

  Unintended pregnancy × Non-slum

0.83

0.505

Interaction: Unintended pregnancy and household wealth

  Unintended pregnancy × Middle

2.50

0.006**

  Unintended pregnancy × Rich

2.22

0.023*