Table 5 Decomposition analysis of change in cumulative fertility in Kenya between 2003 and 2014

Age -group, years

 15–19

0.178

-1.170–1.526

3.06

-0.224

-0.997–0.549

-3.85

 20–29

0.013

-0.083–0.108

0.22

-0.856

-3.323–1.611

-14.74

 30–39

-0.001

-0.012–0.011

-0.02

-0.162

-1.904–1.579

-2.80

 40–49

Ref

Ref

Ref

Ref

Ref

Ref

Level of education

 None

Ref

Ref

Ref

Ref

Ref

Ref

 Primary

-0.004

-0.034–0.026

-0.07

3.978***

0.182–7.774

68.51

 Secondary

-0.002

-0.021–0.016

-0.04

2.038***

0.441–4.081

35.10

 Higher

-0.007

-0.066–0.052

-0.13

1.539***

0.429–2.650

26.52

Place of residence

 Urban

-0.022

-0.211–0.167

-0.38

-0.03

-2.466–2.406

-0.52

 Rural

Ref

Ref

Ref

Ref

Ref

Ref

Age at first sexual intercourse,years

 Below 15

Ref

Ref

Ref

Ref

Ref

Ref

 15–19

0.003

-0.018–0.023

0.05

1.168

-2.276–4.611

20.11

 20+

-0.006

-0.055–0.042

-0.11

0.774

-0.842–2.389

13.32

Age at first marriage,years

 Below 18

Ref

Ref

Ref

Ref

Ref

Ref

 18–24

-0.003

-0.026–0.021

-0.05

0.414

-2.354–3.182

7.13

 25+

-0.02

-0.168–0.129

-0.34

0.395

-0.448–1.239

6.81

Family size preference

 0–2

Ref

Ref

Ref

Ref

Ref

Ref

 3–4

0.002

-0.011–0.014

0.03

1.309

-1.940–4.558

22.54

 5+

-0.021

-0.179–0.138

-0.36

-0.251

-2.427–1.925

-4.32

Child mortality experience

 No child death

Ref

Ref

Ref

Ref

Ref

Ref

 One or more deaths

-0.16

-1384–1.064

-2.76

0.669

-0.187–1.526

11.53

Wealth Index

 Lowest

Ref

Ref

Ref

Ref

Ref

Ref

 Second

-0.006

-0.053–0.041

-0.11

-0.513

-1.764–0.738

-8.83

 Middle

-0.008

-0.067–0.051

-0.13

0.42

-0.859–1.700

7.24

 Fourth

-0.004

-0.034–0.026

-0.07

0.836

-0.569–2.242

14.4

 Highest

0.161

-1.036–1.358

2.77

0.451

-1.327–2.228

7.76

Regions

 Nairobi

Ref

Ref

Ref

Ref

Ref

Ref

 Central

-0.007

-0.065–0.051

-0.12

1.147

-0.229–2.523

19.75

 Coast

0.001

-0.016–0.019

0.02

0.466

-1.231–2.163

8.02

 Eastern

0.028

-0.174–0.231

0.49

1.678

-0.885–4.240

28.89

 Nyanza

0.018

-0.113–0.148

0.31

0.584

-1.505–2.674

10.06

 Rift valley

0.159

-1.008–1.326

2.74

2.369

-1.596–6.333

40.8

 Western

-0.057

-0.483–0.369

-0.98

0.217

-0.915–1.350

3.74

 North Eastern

-0.027

-0.232 -0 0.178

-0.47

0.832

-0.204–1.868

14.34

Religion

 Roman catholic

Ref

Ref

Ref

Ref

Ref

Ref

 Protestants/other Christian

-0.004

-0.046–0.039

-0.06

0.512

-2.222–3.247

8.82

 Muslim

0.006

-0.047–0.059

0.10

2.241

-6.898-11.380

38.59

 No religion/other religions

-0.003

-0.002–0.001

-0.01

-0.166

-2.299–1.967

-2.86