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Table 1 List of variables used in the univariate logistic regression analyses with all comparison groups, organised by domains

From: A logistic regression analysis of risk factors in ME/CFS pathogenesis

Domains

List of variables

Demographic

Age at survey (or age at disease onset for the diseased groups), sex, ethnicity.

Socio-economic

Marital status, education, individual income, index of multiple deprivationa.

Family health history

High blood pressure, diabetes, heart problems, asthma, allergies, depression, anxiety, mental health problems, learning disabilities, physical disabilities, cancer, ME/CFS, MS, other neurological problems, tuberculosis, any other health problems.

Lifestyle

Smoking status, alcohol consumption/week, physical activity

Previous morbidity (prior to disease onset)

High blood pressure, heart problems, asthma, allergies, depression, anxiety, high levels of stress, history of frequent coughs/colds, intolerance to alcoholic drinks, intolerance to sugar, other health problems.

Recent exposures (6 months prior to disease onset)

Lived on a farm, tick bites, vaccines/immunisations, travelling overseas, flooding, radiation, carbon monoxide (CO), pesticides, any other chemicals, had meningitis, had any other serious infection, had any head injury, had a major operation, contraceptive pill (women only), lived in a house with gas or oil appliances (for heating or cooking), lived in a house with a gas fire, BCG vaccination.

  1. ME/CFS Myalgic Encephalomyelitis/Chronic Fatigue Syndrome, MS Multiple Sclerosis.
  2. aIndex of multiple deprivation refers to area of residence [19]. All other variables are as reported by research participants