Table 1 Explanatory variables in final logistics model

Demographic

Age of respondent

18-24* vs 25-44, 45-64, 65+

Gender

Male* vs Female

Exposure

Nitrogen dioxide (NO₂)

Sulphur dioxide (SO₂)

Benzene, toluene, ethylbenzene and xylenes (BTEX)

Gas, dust, fumes and pesticides (outdoor exposure)

Pets, carpets, rugs and fireplace (indoor exposure)

Socioeconomic

Marital status

Partner* vs No partner

High school graduate (education)

Yes* vs No

Below Low Income Cut Off

No* vs yes

Employment status

Employed*, Other, Unemployed

Children under 18 (children)

No* vs yes

Housing tenure

Owned* vs rented

Housing condition

Sastisfactory* vs needs repair

Health Behaviour

Frequency of monthly alcohol use

Regular smoker

No* vs Yes

Hours of weekly exercise

Voluntary Medical Check-up

No* vs Yes

Community & Environmental Perception

Odour annoyance

0-10

Aware that Sarnia is considered in an Area of Concern (awareness)

No* vs Yes

Believe odours/pollution cause health problems (pollution health)

No* vs Yes

Community satisfaction

Dissatisfied* vs Satisfied

Health Care

Health care provider travel and wait times (Care availability)

≤ 20 min* vs > 20 min

Health Status

Physician diagnosed chronic health problems (chronic conditions)

Health problems from pollution-induced stress (stress symptoms)

Cardinal health problems of pollution (cardinal symptoms)

Back- or joint-pain and easy bruising (control symptoms)

None* vs any

Above cut-point 4 positive responses on General Health Questionnaire

No* vs Yes

Self-rated health compared to other people same age

Good or better* vs Fair/poor

Ability to cope with daily problems (coping)

Good or better* vs Fair/poor

Outcomes

Health Care Access

Regular health care provider or family physician (GP Access)

Yes* vs No

Health Care Utilization

General practitioner use in the past 2 weeks (GP Use)

No* vs Yes