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Table 2 A description of the variables included in the regression models

From: The association between health-related quality of life and problem gambling severity: a cross-sectional analysis of the Health Survey for England

Variable name

Description

EQ-5D variable

Both EQ-5D utility score and EQ-5D domain scores were chosen as dependent variables

EQ-5D score

EQ-5D utility score and EQ-5D domain score were included as the dependent variables

EQ-5D domain scores

The score for each of the EQ-5D domains: mobility, self-care, usual activities, pain, anxiety/ depression, scores range from 1–5

PGSI variables

PGSI score, PGSI category and a 7-item derived harms variable were each included, separately, in the models i.e., the model was repeated with either PGSI score, PGSI category or 7-item derived harms variable as an independent variable (3 models for each dependent variable)

PGSI score

The total score from the PGSI, ranging from 0–27

PGSI category

Four categories based on the total PGSI score of the respondent

0 = No-risk/non-gamblers

1–2 = Low-risk gambler

3–7 = Moderate-risk gambler

8 +  = High-risk gambler

7-item derived harms variable

A derived variable using 7 out of the 9 items of the PGSI (item 2 and 3 excluded), ranging from 0–21

Mental Disorder

A binary variable indicating the presence of a mental disorder as a long-lasting illness

Disability

A binary variable indicating whether the participant received any disability benefits

Alcohol

A categorical variable referring to the frequency of alcohol drunk in the past 12 months with 8 levels (1. Almost every day, 2. Five or six days a week, .3 Three or four days a week, 4. Once or twice a week, 5. Once or twice a month, 6. Once every couple of months, 7. Once or twice a year, 8. Not at all in the last 12 months/Non-drinker)

Smoke status

A categorical variable referring to cigarette smoking status (10 or more cigarettes daily, less than 10 cigarettes daily, or a non-smoker)

Age

A categorical variable referring to the age of the participant in approximately 3/5-year bands, from 16–19 years to 90 + years

Sex

A binary variable indicating male or female

Ethnicity

A categorical variable referring to the ethnicity of the participant with 5 categories: White, Black, Asian, Mixed and Other