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Table 2 Adjusted impact of study variables on utility scores by Tobit regression models of total sample, the capital and and inner cities

From: Health-related quality of life in the Brazilian Amazon: a population-based cross-sectional study

Variables Total
(n = 4001)
Manaus
(n = 3479)
Inner cities
(n = 522)
  Coefficient p value Coefficient p value Coefficient p value
Sex
 Female Ref.a   Ref.   Ref.  
 Male 0.041 <0.001 0.038 <0.001 0.057 0.026
Age group (years)
 18–24 Ref.   Ref.   Ref.  
 25–34 −0.002 0.849 −0.005 0.692 0.006 0.858
 35–44 −0.004 0.787 0.001 0.972 −0.028 0.461
 45–59 −0.028 0.053 −0.026 0.089 −0.054 0.164
 60+ −0.022 0.270 −0.019 0.373 −0.072 0.187
Marital status
 Single Ref.   Ref.   Ref.  
 Separated/Divorced −0.052 0.001 −0.046 0.008 −0.065 0.145
 Widowed 0.012 0.614 0.015 0.578 0.023 0.748
 Married −0.006 0.485 −0.003 0.743 −0.008 0.752
Pregnancy (last 12 months)
 No Ref.   Ref.   Ref.  
 Yes −0.005 0.789 −0.021 0.287 0.120 0.065
Ethnicity
 White Ref.   Ref.   Ref.  
 Black 0.036 0.066 0.014 0.516 0.148 0.005
 Asian 0.006 0.791 0.013 0.589 −0.060 0.431
 Brown −0.019 0.095 −0.015 0.211 −0.029 0.329
 Indigenous −0.041 0.280 −0.057 0.160 0.011 0.900
Educational level
 Higher education or above Ref.   Ref.   Ref.  
 High school 0.029 0.181 0.023 0.329 0.043 0.423
 Middle school 0.042 0.077 0.038 0.146 0.052 0.376
 Elementary school or less 0.028 0.217 0.017 0.497 0.076 0.173
Work status
 Formal Ref.   Ref.   Ref.  
 Informal −0.019 0.114 −0.019 0.134 −0.006 0.843
 Retired −0.042 0.056 −0.050 0.036 0.025 0.672
 Unemployed 0.023 0.081 0.020 0.152 0.076 0.041
 Does not work 0.031 0.037 0.029 0.067 0.069 0.100
Social classb
 A/B1 Ref.   Ref.   Ref.  
 B2 −0.016 0.567 −0.010 0.732 −0.053 0.622
 C1 −0.053 0.050 −0.043 0.133 −0.108 0.284
 C2 −0.081 0.002 −0.078 0.005 −0.072 0.471
 D/E −0.118 <0.001 −0.103 <0.001 −0.204 0.041
Health perception
 Very good Ref.   Ref.   Ref.  
 Good 0.016 0.233 0.001 0.922 0.095 0.008
 Fair −0.115 <0.001 −0.133 <0.001 0.012 0.765
 Bad −0.242 <0.001 −0.252 <0.001 −0.169 0.005
 Very bad −0.369 <0.001 −0.379 <0.001 −0.299 <0.001
  1. aRef., reference
  2. bSocial class according to the Brazilian criteria of economic classification [23]