Table 3 Multivariable nonlinear decomposition analysis of the change in treatment gap of dementia between 2013 and 2023.

From: Sociodemographic and clinical determinants of the dementia treatment gap in Singapore and their evolution over a decade

Total

Endowment component (E)

95%

CI lower

95%

CI upper

p value

Percentage

Coefficient component (C)

95%

CI lower

95%

CI upper

p value

Percentage

0.09167

0.04026

0.14307

< 0.001

49.7

0.09292

0.01139

0.17446

0.03

50.3

Age group

60–74

0.00008

-0.00082

0.00098

0.86

0.04

-0.00142

-0.00898

0.00614

0.71

-0.77

75–84

-0.00058

-0.00153

0.00037

0.23

-0.32

0.00839

-0.00600

0.02277

0.25

4.54

85+

-0.00087

-0.00287

0.00113

0.39

-0.47

-0.00530

-0.01727

0.00668

0.39

-2.87

Ethnicity

Chinese

-0.00148

-0.00327

0.00032

0.11

-0.80

-0.01445

-0.03813

0.00923

0.23

-7.83

Malay

-0.00071

-0.00154

0.00012

0.09

-0.39

0.00054

-0.00370

0.00479

0.80

0.30

Indian

0.00004

-0.00123

0.00130

0.96

0.02

0.00109

-0.00181

0.00400

0.46

0.59

Education

None

0.00278

-0.00223

0.00779

0.28

1.51

0.01332

-0.00142

0.02805

0.08

7.21

Below primary

-0.00068

-0.00496

0.00359

0.75

-0.37

0.00575

-0.00821

0.01971

0.42

3.11

Primary

0.00411

-0.00074

0.00897

0.10

2.23

0.00202

-0.00541

0.00946

0.59

1.10

Secondary and above

0.00687

-0.00264

0.01637

0.16

3.72

-0.01281

-0.02673

0.00111

0.07

-6.94

Personal income

No income

0.00001

-0.00826

0.00827

1.00

0.00

0.01748

0.00045

0.03452

0.04

9.47

SG$ 1 to 1000

0.00029

-0.00239

0.00296

0.83

0.16

-0.01028

-0.03127

0.01072

0.34

-5.57

Above SG$ 1000

-0.00075

-0.01060

0.00909

0.88

-0.41

-0.00365

-0.01122

0.00391

0.34

-1.98

Employment type

Non-manual

0.00039

-0.00119

0.00197

0.63

0.21

0.00337

-0.00854

0.01527

0.58

1.82

Manual

-0.00157

-0.00332

0.00018

0.08

-0.85

0.01168

-0.01178

0.03515

0.33

6.33

Never worked

-0.00136

-0.00451

0.00178

0.40

-0.74

-0.00593

-0.01518

0.00332

0.21

-3.21

Living alone

0.00812

-0.01613

0.03237

0.51

4.40

-0.00151

-0.02122

0.01820

0.88

-0.82

Family history of dementia

0.01605

-0.00547

0.03757

0.14

8.70

-0.00632

-0.03190

0.01925

0.63

-3.43

Contact with types of healthcare providers in last three months

0

-0.00227

-0.00600

0.00146

0.23

-1.23

-0.01755

-0.04137

0.00627

0.15

-9.51

1

0.01133

-0.00018

0.02285

0.05

6.14

-0.04544

-0.08886

-0.00203

0.04

-24.62

2

-0.00078

-0.00716

0.00561

0.81

-0.42

-0.02934

-0.05652

-0.00216

0.03

-15.90

3

0.00392

-0.00109

0.00893

0.13

2.12

0.01027

0.00062

0.01992

0.04

5.56

Attend day centre regularly in last three months

0.02759

-0.01702

0.07219

0.23

14.95

0.00868

-0.04253

0.05989

0.74

4.70

Clinical dementia rating

Normal/very mild

0.00172

0.00085

0.00258

< 0.001

0.93

-0.01973

-0.03537

-0.00410

0.01

-10.69

Mild

0.00444

-0.00076

0.00965

0.09

2.41

-0.02787

-0.04816

-0.00758

0.007

-15.10

Moderate/severe

0.01755

0.00728

0.02782

< 0.001

9.51

0.04667

0.01466

0.07868

0.004

25.28

Traumatic brain injury

-0.00203

-0.00580

0.00174

0.29

-1.10

0.00467

-0.01014

0.01947

0.54

2.53

Doctor diagnosed hypertension

0.00010

-0.00029

0.00049

0.61

0.05

-0.01840

-0.06334

0.02654

0.42

-9.97

Depression/subsyndromal depression

0.00041

-0.00110

0.00192

0.60

0.22

0.00407

-0.01133

0.01947

0.60

2.20

Anxiety/subsyndromal anxiety

0.00085

-0.00201

0.00372

0.56

0.46

-0.00318

-0.01203

0.00567

0.48

-1.72

Care needs

-0.00189

-0.00578

0.00200

0.34

-1.02

0.00020

-0.04604

0.04644

0.99

0.11

Constant

     

0.17792

0.02721

0.32863

0.02

96.39

  1. Bold values indicate Significance (p < 0.05).