Table 3 Multiple linear regression analyses with body mass index as dependent variable

(1)

(2)

(3)

(4)

(5)

Independent variables

Sex: female (Ref.: male)

-0.908***

-0.919***

-0.967***

-0.925***

-1.001***

(0.251)

(0.252)

(0.253)

(0.250)

(0.255)

Age in years

-0.043*

-0.043*

-0.045*

-0.044*

-0.039+

(0.021)

(0.021)

(0.021)

(0.021)

(0.021)

Marital status: - married, not living together with spouse (Ref.: married and living together with spouse)

-0.518

-0.526

-0.563

-0.502

-0.562

(0.774)

(0.774)

(0.781)

(0.775)

(0.780)

 - divorced

-0.764

-0.832+

-0.697

-0.823+

-0.690

(0.472)

(0.471)

(0.472)

(0.471)

(0.476)

 - widowed

0.373

0.407

0.419

0.278

0.384

(0.481)

(0.485)

(0.481)

(0.477)

(0.482)

 - single

-0.128

-0.155

-0.130

-0.294

0.0773

(0.608)

(0.602)

(0.602)

(0.597)

(0.622)

Number of illnesses

0.461***

0.470***

0.459***

0.473***

0.455***

(0.078)

(0.077)

(0.077)

(0.076)

(0.078)

Mean monthly net equivalent income

-0.359***

-0.366***

-0.350***

-0.370***

-0.378***

(0.088)

(0.089)

(0.085)

(0.090)

(0.079)

Occupational status: - retired (Ref.: employed)

0.148

0.125

0.102

0.128

0.0376

(0.440)

(0.439)

(0.436)

(0.437)

(0.437)

 - others

0.322

0.316

0.300

0.359

0.184

(0.506)

(0.506)

(0.504)

(0.505)

(0.506)

Help around house: yes (Ref.: no)

0.132

(0.259)

Looking after someone: yes (Ref.: no)

0.285

(0.319)

Nursing care services: yes (Ref.: no)

0.580*

(0.294)

Any other help: yes (Ref.: no)

0.020

(0.255)

Time per week spent for informal care (in hours)

0.013*

(0.006)

Constant

29.52***

29.36***

29.59***

29.61***

29.37***

(1.173)

(1.163)

(1.157)

(1.190)

(1.181)

Observations

1,256

1,257

1,257

1,256

1,221

R²

0.064

0.065

0.066

0.066

0.068