Health-related quality of life in urban surgical emergency department patients: Comparison with a representative German population sample

Table 3 Results of the linear multiple regression model (with stepwise variable selection procedure), dependent variable = mental component summary score of the SF-36 (MCS)

Covariates	β_x-coefficient	se (β_x)	p
β₀	39.28	2.02	< 0.001
Age (+ 1 year) (β₁)	0.05	0.02	0.012
Male gender (β₂)	2.22	0.51	< 0.001
Income > 24,000 €/year (β₃)	1.52	0.53	0.004
Household > 1 person (β₇)	1.31	0.51	0.010
Hazardous alcohol consumption (β₈)	-1.84	0.59	0.002
Illicit drug use (β₉)	-2.74	0.64	< 0.001
Smoking (β₁₀)	-0.87	0.52	0.097
ISS > 1 point (β₁₁)	1.251	0.63	0.048

Model = β₀ + β₁ * age + β₂ * male gender + β₃ * A-level + β₄ * being employed + β₅ * income > 24,000€/year + β₆ *partnership + β₇ * household > 1 person + β₈ * hazardous alcohol consumption + β₉ * illicit drug use + β₁₀ * smoking + β₁₁ * ISS > 1 point.
A-Level: 12 or 13 years of school education, ISS = Injury Severity Score

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