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Table 2 Linear regression analysis of the factors associated with utility score by presence or absence of metabolic comorbidity

From: Impact of metabolic comorbidity on the association between body mass index and health-related quality of life: a Scotland-wide cross-sectional study of 5,608 participants

   Univariate Multivariate
   No metabolic comorbidity With metabolic comorbidity No metabolic comorbidity With metabolic comorbidity
   Coefficient (95% CI) P-value Coefficient (95% CI) P-value Coefficient (95% CI) P-value Coefficient (95% CI) P-value
BMI category Underweight -0.051 (-0.084, -0.018) 0.002 -0.167 (-0.275, -.059) 0.002 -0.036 (-0.069, -0.004) 0.027 -0.141 (-0.245, -0.037) 0.008
  Normal-weight* - - - - - - - -
  Overweight 0.008 (-0.000, 0.016) 0.059 0.032 (0.004, 0.060) 0.023 0.001 (-0.008, 0.009) 0.900 0.026 (-0.002, 0.053) 0.064
  Obese -0.012 (-0.022, -0.002) 0.015 -0.012 (-0.041, 0.015) 0.380 -0.016 (-0.026, -0.006) 0.001 -0.015 (-0.043, 0.013) 0.290
  Morbidly obese -0.054(-0.079, -0.029) < 0.001 -0.085 (-0.137, -0.034) 0.001 -0.045 (-0.069, -0.020) < 0.001 -0.077 (-0.128, -0.026) 0.003
Age (yrs) 20-44 0.002 (-0.005, 0.010) 0.500 0.001 (-0.036, 0.039) 0.924 0.005 (-0.002, 0.013) 0.190 0.007 (-0.030, 0.043) 0.714
  45-64 - - - - - - - -
  ≥ 65 -0.007 (-0.018, 0.003) 0.191 0.004 (-0.016, 0.025) 0.663 -0.009 (-0.020, 0.002) 0.106 0.004 (-0.017, 0.024) 0.718
Sex Male* - - - - - - - -
  Female -0.020 (-0.028, -0.013) < 0.001 -0.009 (-0.029, 0.010) 0.357 -0.020 (-0.027, -0.013) < 0. 001 -0.005 (-0.025, 0.015) 0.629
Deprivation quintiles         
  1(Least deprived)* - - - - - - - -
  2 -0.012 (-0.023, -0.001) 0.030 -0.016(-0.048, 0.015) 0.313 -0.008 (-0.019, 0.002) 0.132 -0.009 (-0.040, 0.021) 0.546
  3 -0.026 (-0.037, -0.015) < 0.001 -0.053(-0.085, -0.021) 0.001 -0.019 (-0.030, -0.008) 0.001 -0.036 (-0.068, -0.004) 0.027
  4 -0.036 (-0.047, -0.024) < 0.001 -0.070(-0.103, -0.038) < 0.001 -0.026 (-0.038, -0.015) < 0.001 -0.050 (-0.082, -0.017) 0.003
  5(Most deprived) -0.070 (-0.082, -0.058) < 0.001 -0.117(-0.150, -0.084) < 0.001 -0.052 (-0.064, -0.040) < 0.001 -0.084 (-0.117, -0.051) < 0.001
Smoking status Never smoker* - - - - - - - -
  Ex-smoker -0.012 (-0.021, -0.004) 0.005 -0.031 (-0.053, -0.009) 0.006 -0.008 (-0.016, 0.001) 0.095 -0.031 (-0.053, -0.009) 0.006
  Current smoker -0.051 (-0.060, -0.042) < 0.001 -0.085 (-0.113, -0.058) < 0.001 -0.041 (-0.050, -0.032) < 0.001 -0.067 (-0.095, -0.038) < 0.001
Drinking status Never drinker* - - - - - - - -
  Ex-drinker -0.058 (-0.083, -0.033) < 0.001 -0.066 (-0.118, -0.013) 0.014 -0.050 (-0.075, -0.026) < 0.001 -0.043 (-0.094, 0.008) 0.098
  Sensible drinker 0.010 (-0.008, 0.028) 0.281 0.033 (-0.002, 0.069) 0.067 0.003 (-0.014, 0.021) 0.710 0.032 (-0.02, 0.067) 0.068
  Excessive drinker 0.005 (-0.014, 0.024) 0.623 0.056 (0.015, 0.097) 0.007 -0.001 (-0.020, 0.018) 0.925 0.052 (0.010, 0.093) 0.014
  Missing -0.059 (-0.136, 0.018) 0.133 0.029 (-0.186, 0.244) 0.793 -0.054 (-0.130, 0.021) 0.156 0.033 (-0.173, 0.239) 0.754
  1. *Referent category, CI confidence interval, < 21 units/week for men, < 14 units/week for women