Table 2 Multivariate linear regression with selected background characteristics to predict the cognitive outcome of the elderly in India, 2007-08, in 4 models

 50-59

Ref

Ref

Ref

 60-69

−0.349

(−0.523;-0.175)

<.001

−0.350

(−0.525;-0.175)

<.001

−0.348

(−0.522;-0.173)

<.001

−0.353

(−0.522;-0.173)

<.001

 70+

−1.018

(−1.247;-0.789)

<.001

−1.019

(−1.249;-0.790)

<.001

−1.022

(−1.251;-0.794)

<.001

−1.016

(−1.245;-0.788)

<.001

 Male

Ref

Ref

Ref

 Female

−0.202

(−0.416;-0.013)

0.065

−0.271

(−0.845;-0.303)

0.355

−0.066

(−0.398;0.265)

0.695

−0.189

(−0.403;-0.026)

0.084

 Urban

Ref

Ref

Ref

 Rural

−0.525

(−0.707;-0.343)

<.001

−0.525

(−0.708;-0.343)

<.001

−0.527

(−0.709;-0.345)

<.001

−0.524

(−0.706;-0.342)

<.001

 Never married

Ref

Ref

Ref

 Currently married

−0.180

(−0.952;0.591)

0.647

−0.180

(−0.952;0.592)

0.647

−0.177

(−0.949;0.595)

0.652

−0.169

(−0.939;0.602)

0.668

 Others

−0.580

(−1.368;0.209)

0.149

−0.579

(−1.368;0.209)

0.15

−0.577

(−1.366;0.211)

0.151

−0.556

(−1.344;0.231)

0.166

 Unreserved

Ref

Ref

Ref

 Reserved

−0.534

(-0.690;0.378)

<.001

−0.536

(−0.693;0.380)

<.001

−0.535

(−0.691;0.379)

<.001

−0.541

(−0.697;0.385)

<.001

 No formal

Ref

Ref

Ref

 Primary

1.569

(1.375;1.762)

<.001

1.570

(1.376;1.764)

<.001

1.562

(1.369;1.756)

<.001

1.566

(1.373;1.759)

<.001

 Secondary

2.718

(2.484;2.952)

<.001

2.719

(2.485;2.953)

<.001

2.717

(2.483;2.951)

<.001

2.722

(2.489;2.956)

<.001

 College

3.819

(3.441;4.196)

<.001

3.819

(3.441;4.197)

<.001

3.823

(3.445;4.201)

<.001

3.836

(3.458;4.213)

<.001

 Low

Ref

Ref

Ref

 Medium

0.618

(0.430;0.807)

<.001

0.618

(0.430;0.807)

<.001

0.621

(0.433;0.810)

<.001

0.626

(0.438;0.814)

<.001

 High

1.176

(0.967;1.384)

<.001

1.176

(0.967;1.385)

<.001

1.175

(0.967;1.384)

<.001

1.177

(0.969;1.386)

<.001

 Never worked

Ref

Ref

Ref

 Retired

0.311

(0.086;0.537)

0.007

0.249

(−0.323;0.821)

0.393

0.310

(0.084;0.536)

<.01

−0.042

(–0.373;0.289)

0.803

 Presently working

0.445

(0.213;0.677)

<.001

0.375

(0.189;0.940)

0.193

0.441

(0.209;0.674)

<.001

0.274

(–0.088;0.635)

0.138

 Lesser

Ref

Ref

Ref

 Sometimes

0.330

(0.140;0.520)

<.001

0.329

(0.139;0.519)

<.001

0.511

(0.197;0.825)

<.001

−0.149

(−0.462;0.163)

0.348

 More

0.842

(0.633;1.051)

<.001

0.841

(0.632;1.050)

<.001

0.923

(0.631;1.215)

<.001

1.034

(0.585;1.484)

<.001

 No

Ref

Ref

Ref

 Yes

0.254

(0.003;0.505)

<.05

0.254

(0.003;0.505)

<.05

0.258

(0.007;0.509)

<.01

0.249

(−0.002;0.499)

0.051

 Low

Ref

Ref

Ref

 Medium

−0.327

(−0.514;-0.141)

<.001

−0.328

(−0.514;-0.141)

<.001

−0.329

(−0.515;-0.142)

<.001

−0.324

(−0.511;-0.138)

<.001

 High

−0.937

(−1.139;-0.735)

<.001

−0.939

(−1.142;-0.737)

<.001

−0.934

(−1.136;-0.732)

<.001

−0.936

(−1.138;-0.734)

<.001

 Never work X male

Ref

 Retired X female

0.065

(−0.570;0.700)

0.842

 Presently working X female

0.089

(−0.539;0.717)

0.78

 Lesser X male

Ref

 Sometimes X female

−0.294

(−0.688;0.099)

0.142

 More X female

−0.056

(−0.489;0.377)

0.799

 Never work X lesser

Ref

 Retired X sometimes

0.904

(0.440;1.368)

<.001

 Retired X more

−0.009

(−0.568;-0.551)

0.976

 Presently working X sometimes

0.582

(0.126;1.038)

<.05

 Presently working X more

−0.211

(−0.757;0.335)

0.448

Constant

−0.682

−0.615

−0.777

−0.554

R2

0.378

0.378

0.379

0.381

Number of observations

5212

5212

5212

5212

F statistics

166.3

150.4

150.6

138.6