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. 2018 Feb 2;16:28. doi: 10.1186/s12955-018-0854-6

Table 4.

Tobit panel models with EQ-5D score (utility) as dependent variable

Model 1 Model 2 Model 3 Model 4 Model 5 Model 6 Model 7
Age −0.009*** − 0.007*** − 0.007*** − 0.007*** −0.006*** − 0.005** − 0.006***
(0.00) (0.00) (0.00) (0.00) (0.00) (0.00) (0.00)
Length of hospital stay − 0.006** − 0.004** − 0.005** − 0.005** − 0.004* − 0.004* − 0.005**
(0.00) (0.00) (0.00) (0.00) (0.00) (0.00) (0.00)
Gender (Male) 0.075 0.092* 0.093* 0.089* 0.098* 0.101** 0.090*
(0.04) (0.04) (0.04) (0.04) (0.04) (0.04) (0.04)
Employment status −0.027 −0.032 − 0.035 − 0.035 − 0.038 −0.058 − 0.068
(0.06) (0.05) (0.05) (0.05) (0.05) (0.05) (0.06)
Alcohol consumption −0.002 −0.003 − 0.003 −0.003 − 0.002 −0.001 0.000
(0.01) (0.00) (0.00) (0.00) (0.00) (0.00) (0.01)
Smoker −0.050 −0.054* − 0.056* −0.055* − 0.052* −0.057* − 0.055*
(0.03) (0.02) (0.02) (0.02) (0.02) (0.02) (0.03)
BMI 0.015 −0.001 −0.002 − 0.002 0.002 − 0.001 0.013
(0.03) (0.02) (0.02) (0.02) (0.02) (0.02) (0.03)
History of pneumonia −0.081 −0.071 − 0.070 − 0.073 − 0.071 − 0.062 − 0.067
(0.05) (0.05) (0.05) (0.05) (0.05) (0.05) (0.05)
Month 1 0.000 0.000 0.000 0.000 0.000 0.000 0.000
Ref. Ref. Ref. Ref. Ref. Ref. Ref.
Month 3 0.205*** 0.203*** 0.203*** 0.203*** 0.203*** 0.203*** 0.205***
(0.02) (0.02) (0.02) (0.02) (0.02) (0.02) (0.02)
Month 6 0.250*** 0.248*** 0.248*** 0.248*** 0.248*** 0.248*** 0.250***
(0.02) (0.02) (0.02) (0.02) (0.02) (0.02) (0.02)
Month 12 0.261*** 0.259*** 0.259*** 0.259*** 0.259*** 0.259*** 0.261***
(0.02) (0.02) (0.02) (0.02) (0.02) (0.02) (0.02)
Death −0.582*** −0.579*** − 0.583*** − 0.577*** − 0.559***
(0.07) (0.07) (0.07) (0.07) (0.07)
Intensive care 0.032
(0.05)
Critical care 0.041
(0.05)
Port Score −0.026
(0.02)
Charlson − 0.076* −0.119**
(0.03) (0.04)
Constant 1.172*** 1.094*** 1.098*** 1.090*** 1.078*** 1.034*** 1.074***
sigma_u (0.14) (0.12) (0.12) (0.12) (0.12) (0.12) (0.14)
Constant 0.310*** 0.264*** 0.264*** 0.264*** 0.264*** 0.261*** 0.303***
sigma_e (0.02) (0.02) (0.02) (0.02) (0.02) (0.02) (0.02)
Constant 0.261*** 0.259*** 0.259*** 0.259*** 0.259*** 0.259*** 0.261***
R2 (0.01) (0.01) (0.01) (0.01) (0.01) (0.01) (0.01)
bic 1062.682 1005.385 1011.927 1011.601 1010.714 1007.564 1060.352
N 1112 1112 1112 1112 1112 1112 1112

Significance levels are :*p < 0.05, **p < 0.01, ***p < 0.001. Standard errors in parenthesis