Table 4 Odds ratio and 95% confidence interval (CI) for multimorbidity at age 55 by different life course models

 0,0,0,0,0

1.01

0.32, 1.01

0.054

1.68

0.45, 1.68

0.678

1.99

0.45, 1.99

0.896

 0,0,0,1,0

2.29

0.67, 2.29

0.504

3.81

0.93, 3.81

0.081

5.25

1.10, 5.25

0.027

 0,0,1,0,0

0.95

0.32, 0.95

0.031

1.31

0.37, 1.31

0.266

1.37

0.33, 1.37

0.272

 0,0,1,0,1

1.51

0.53, 1.51

0.682

2.38

0.7, 2.38

0.416

2.04

0.50, 2.04

0.975

 0,0,1,1,0

0.80

0.29, 0.8

0.005

1.31

0.4, 1.31

0.284

1.70

0.45, 1.70

0.698

 0,0,1,1,1

1.44

0.51, 1.44

0.553

2.49

0.74, 2.49

0.323

3.14

0.80, 3.14

0.184

 0,1,1,0,0

0.79

0.35, 0.79

0.002

1.33

0.51, 1.33

0.420

1.71

0.58, 1.71

0.981

 0,1,1,0,1

1.84

0.47, 1.84

0.835

2.75

0.52, 2.75

0.676

3.03

0.48, 3.03

0.698

 0,1,1,1,1

1.06

0.24, 1.06

0.070

1.84

0.33, 1.84

0.574

2.21

0.33, 2.21

0.739

 1,0,0,0,0

2.11

0.24, 2.11

0.546

3.02

0.1, 3.02

0.499

2.40

0.07, 2.40

0.312

 1,0,0,0,1

0.85

0.2, 0.85

0.017

1.82

0.37, 1.82

0.622

2.87

0.49, 2.87

0.703

 1,0,0,1,0

1.59

0.47, 1.59

0.645

2.34

0.58, 2.34

0.664

2.40

0.49, 2.40

0.841

 1,0,0,1,1

0.83

0.27, 0.83

0.009

1.39

0.38, 1.39

0.333

1.74

0.40, 1.74

0.631

 1,0,1,0,0

0.88

0.28, 0.88

0.016

1.28

0.33, 1.28

0.210

1.59

0.34, 1.59

0.440

 1,0,1,0,1

0.66

0.28, 0.66

< 0.001

1.05

0.39, 1.05

0.074

1.45

0.47, 1.45

0.516

 1,0,1,1,0

1.83

0.57, 1.83

0.933

2.94

0.75, 2.94

0.260

2.60

0.55, 2.60

0.648

 1,0,1,1,1

1.47

0.39, 1.47

0.419

2.34

0.51, 2.34

0.825

3.59

0.66, 3.59

0.321

 1,1,0,0,0

1.82

0.37, 1.82

0.622

3.61

0.58, 3.61

0.421

4.84

0.61, 4.84

0.307

 1,1,0,0,1

1.45

0.46, 1.45

0.496

2.20

0.59, 2.2

0.695

3.05

0.71, 3.05

0.304

 1,1,0,1,0

1.33

0.45, 1.33

0.351

1.99

0.55, 1.99

0.882

2.50

0.6, 2.5

0.580

 1,1,0,1,1

0.95

0.32, 0.95

0.032

1.29

0.36, 1.29

0.245

1.82

0.44, 1.82

0.760

 1,1,1,0,0

1.00

0.33, 1

0.049

1.58

0.44, 1.58

0.587

2.06

0.49, 2.06

0.987

 1,1,1,0,1

0.90

0.39, 0.9

0.013

1.34

0.51, 1.34

0.438

1.92

0.64, 1.92

0.713

 1,1,1,1,0

2.29

0.57, 2.29

0.703

2.69

0.56, 2.69

0.608

3.25

0.56, 3.25

0.507

 Childhood

1.01

0.91; 1.12

0.877

0.96

0.85; 1.09

0.526

0.97

0.84; 1.13

0.744

 Adolescence

0.90

0.81; 1.00

0.052

0.88

0.77; 1.01

0.081

0.82

0.70; 0.97

0.023

 Young-adult

0.74

0.66; 0.84

< 0.001

0.82

0.71; 0.95

0.008

0.94

0.79; 1.12

0.497

 Middle-aged adults

0.77

0.69; 0.85

< 0.001

0.85

0.76; 0.96

0.009

0.90

0.77; 1.03

0.137

 Middle-to-older adults

0.64

0.57; 0.70

< 0.001

0.69

0.61; 0.78

< 0.001

0.85

0.73; 0.98

0.027

  None

Ref

Ref

Ref

  One

0.48

0.21; 1.07

0.072

0.56

0.22; 1.39

0.210

0.69

0.23; 2.08

0.513

  Two

0.45

0.21; 0.97

0.041

0.56

0.23; 1.32

0.183

0.69

0.24; 1.96

0.483

  Three

0.38

0.17; 0.81

0.012

0.47

0.20; 1.11

0.177

0.65

0.23; 1.84

0.420

  Four

0.32

0.15; 0.67

< 0.001

0.39

0.17; 0.91

0.030

0.57

0.21; 1.61

0.291

  Five

0.29

0.14; 0.63

< 0.001

0.33

0.14; 0.78

0.011

0.52

0.18; 1.46

0.213

 Continuous

0.86

0.81; 0.91

< 0.001

0.85

0.79; 0.91

< 0.001

0.91

0.84; 0.99

0.001

 Childhood

1.00

0.91; 1.12

0.877

0.96

0.81; 1.15

0.683

0.98

0.80; 1.20

0.848

 Adolescence

0.90

0.81; 1.00

0.052

0.81

0.67; 0.99

0.041

0.83

0.70, 0.98

0.025

 Young-adult

0.74

0.66; 0.84

< 0.001

0.87

0.70; 1.07

0.187

0.98

0.77; 1.25

0.265

 Middle-aged adults

0.77

0.69; 0.84

< 0.001

0.91

0.75; 1.09

0.305

0.90

0.72; 1.12

0.338

 Middle-to-older adults

0.63

0.57; 0.70

< 0.001

0.69

0.59; 0.79

< 0.001

0.82

0.69; 0.98

0.025