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This work has shown that it was possible, starting fromordinal and binary

variables, to dene a onstrained model with two ontinuous indiators on

health status of the population and test it in a statistial point of view.

This newmodelshows that thereistwoindependenthealthindiatorsinthe

swiss population. One one takes into aount the health problems indued

naturally by aging, there is a seond independent indiatorthat an be use

to desribe the health status of the individuals. From here, one ould now

derive inequality indies or investigate more ompliated models, i.e.

stru-tural equationsmodelstolinkthe healthindiators topotentialexplanatory

variablessuh assoioeonomistatus.

Wesuppose the following model

The estimated parameters of the model (7.3) under the null hypothesis are

given in Table 7.3 and 7.4.

Variable

x (j) α (j) 0,1 α (j) 0,2 α (j) 0,3 α (j) 0,4

SAH -1.502 2.211 4.253 6.285

hroni illness 2.400

eyesight 3.391 4.869 5.942

hearing 3.515 5.195 6.713

abilityto walk 46.199 56.058 66.227

allergiold 1.723

psyhiatritreatment 3.594

bakahe 0.195 2.387

weakness feeling 0.105 3.201

stomahahe 1.679 3.650

diarrhoea 1.701 3.705

insomnia 0.531 2.672

headahe 0.430 2.584

ardiaproblems 2.646 4.790

hestahe 2.960 5.106

fever 2.874 4.623

joint problems 0.576 2.803

disability towork -3.955 -0.586

asthma -3.385

Table 7.3: Estimated thresholds for the two health indiators omputed on

the1997SwissHealthsurveydata. Boldvaluesareforsigniantparameters

at the 5% level,based ona z-type test.

Variable

x (j)

latentvariable

z (1)

latentvariable

z (2)

SAH

α (1) (2)

1.435

hroniillness

α (2) (2)

1.293

eyesight

α (3) (2)

1.004

hearing

α (4) (2)

1.084

ability towalk

α (5) (2)

13.538

allergi old

α (6) (2)

0.250 -0.424

psyhiatri treatment

α (7) (2)

1.201

bakahe

α (8) (2)

0.829

weakness feeling

α (9) (2)

1.378

stomahahe

α (10) (2)

0.967

diarrhoea

α (11) (2)

0.877

insomnia

α (12) (2)

0.858

headahe

α (13) (2)

0.710

ardia problems

α (14) (2)

1.153

hestahe

α (15) (2)

1.315

fever

α (16) (2)

0.838

jointproblems

α (17) (2)

1.112

disability towork

α (18) (2)

-0.910

asthma

α (19) (2)

-0.033

Table 7.4: Estimated loadingsfor thetwohealthindiators (withoutthe age

variable) omputed on the 1997 Swiss Health survey data. Bold values are

for signiant parametersat the 5% level,based ona z-typetest.

as amanifest variable,under the null hypothesis are given in Table 7.5.

Variable

x (j)

latentvariable

z (1)

latentvariable

z (2)

age -18.46

SAH 1.306

hroni illness 1.246

eyesight 0.862

hearing 0.844

abilityto walk 0.815

allergiold 0.296 -0.308

psyhiatritreatment 1.296

bakahe 0.793

weakness feeling 1.158

stomahahe 0.960

diarrhoea 0.901

insomnia 0.799

headahe 0.742

ardiaproblems 1.088

hestahe 1.351

fever 0.972

joint problems 1.014

disability towork -0.751

asthma 0.088

Table 7.5: Estimated loadings for the two health indiators with the age

variableomputedonthe1997SwissHealth surveydata. Boldvaluesarefor

signiant parameters atthe 5% level,based on az-typetest.

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