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. 2012 Dec 14;11:77. doi: 10.1186/1475-9276-11-77

Table 1.

Descriptive statistics

Variables Definition Mean Std. Dev. Concentration index
Ill-health
SAH
Self-assessed health: 1 if fair, poor or very poor; 0 if good or very good
0.292
0.454
−0.150
 
Chronic
Chronic conditions: 1 if any chronic disease, disability or condition
0.218
0.413
−0.097
 
Limit
Limitations in daily activity: 1 if any kind of limitations in daily activity due to health problems in the preceding six months
0.203
0.402
−0.101
Age
 
Age1
Age 16–34 (reference category)
0.326
0.469
0.045
 
Age2
Age 35-44
0.207
0.405
0.034
 
Age3
Age 45-49
0.239
0.426
0.055
 
Age4
Age 60-74
0.148
0.355
−0.100
 
Age5
Age > 75
0.080
0.271
−0.251
Sex
 
Female
Female
0.506
0.500
−0.023
 
Foreign
Born outside Spain
0.050
0.219
−0.149
 
Couple
Married or living with his/her partner
0.637
0.481
0.021
Education
 
Ed1
Primary education or below (reference category)
0.313
0.463
−0.233
 
Ed2
Compulsory secondary education
0.229
0.420
−0.112
 
Ed3
Non-compulsory and pre-university secondary education
0.206
0.405
0.071
 
Ed4
Specific labour training
0.012
0.109
0.055
 
Ed5
University graduate
0.240
0.427
0.346
Labour status
 
Employed
Employed in a full-time job (reference category)
0.481
0.590
0.180
 
Unemployed
Unemployed
0.069
0.253
−0.252
 
Student
Student or trainee
0.076
0.266
−0.098
 
Retired
Retired
0.131
0.338
−0.140
 
Invalid
Permanently disabled
0.018
0.134
−0.162
 
Home
Engaged in housework or child care
0.124
0.329
−0.232
 
Otherinact
Other inactive situations
0.043
0.204
−0.256
 
Part-time
Employed in a part-time job
0.058
0.234
−0.010
Social interactions
 
Freqfam1
Daily or weekly face contacts with family members not belonging to the household (reference category)
0.620
0.485
−0.009
 
Freqfam2
Family face contacts several times a month or once a month
0.229
0.420
0.063
 
Freqfam3
Family face contacts less than once a month, or never
0.151
0.358
−0.058
 
Freqfriend1
Daily or weekly face contacts with friends (reference category)
0.668
0.471
0.011
 
Freqfriend2
Friends face contacts several times a month or once a month
0.208
0.406
0.066
 
Freqfriend3
Friends face contacts less than once a month, or never
0.124
0.330
−0.171
 
Contfam1
Daily or weekly non-face contacts with family (reference category)
0.680
0.466
0.037
 
Contfam2
Family non-face contacts several times a month or once a month
0.213
0.409
−0.040
 
Contfam3
Family non-face contacts less than once a month, or never
0.107
0.309
−0.158
 
Contfriend1
Daily or weekly non-face contacts with friends (reference category)
0.595
0.491
0.073
 
Contfriend2
Friends non-face contacts several times a month or once a month
0.224
0.417
−0.007
 
Contfriend3
Friends non-face contacts less than once a month, or never
0.180
0.385
−0.233
 
Particip
Participation in any organized non-work activity
0.655
0.475
0.025
Degree of urbanization
 
Density1
Very populated area (reference category)
0.529
0.499
0.105
 
Density2
Medium populated area of residence
0.201
0.401
−0.055
 
Density3
Sparsely populated area of residence
0.270
0.444
−0.164
Housing deprivation
 
Dephousing1
Home suffering from one deprivation problem
0.249
0.432
−0.089
 
Dephousing2
Home suffering from two or more of deprivation problems
0.060
0.238
−0.393
Financial deprivation
 
Findepriv1
Suffers from one financial deprivation problem
0.194
0.395
−0.091
 
Findepriv2
Suffers from two or more financial deprivation problems
0.278
0.448
−0.335
 
Nodentist
Did not get dental treatment due to financial problems
0.032
0.175
−0.309
Income
 
Eqhincome
Log of equivalent household income
9.325
0.667
0.036
Region of residence
 
 
 
 
 
 
Reg1
Galicia
0.068
0.252
−0.119
 
Reg2
Asturias
0.028
0.164
0.045
 
Reg3
Cantabria
0.014
0.116
0.048
 
Reg4
País Vasco
0.047
0.212
0.185
 
Reg5
Navarra
0.015
0.120
0.256
 
Reg6
Rioja
0.007
0.086
−0.024
 
Reg7
Aragón
0.031
0.174
0.074
 
Reg8
Madrid
0.133
0.340
0.152
 
Reg9
Castilla y León
0.061
0.240
−0.118
 
Reg10
Castilla-La Mancha
0.038
0.191
−0.121
 
Reg11
Extremadura
0.024
0.153
−0.306
 
Reg12
Cataluña
0.162
0.368
0.173
 
Reg13
Comunidad Valenciana
0.109
0.312
−0.025
 
Reg14
Islas Baleares
0.020
0.141
0.151
 
Reg15
Andalucía
0.167
0.373
−0.166
 
Reg16
Región de Murcia
0.029
0.167
−0.089
 
Reg17
Ceuta
0.002
0.039
−0.139
 
Reg18
Melilla
0.001
0.035
0.078
  Reg19 Islas Canarias 0.044 0.205 −0.164