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Table 1 Pre-specification of PreMPoRT predictive variables

From: A study protocol for a predictive algorithm to assess population-based premature mortality risk: Premature Mortality Population Risk Tool (PreMPoRT)

Variable category Variable Definition df1
Health behaviors Alcohol consumption 3
 Non-drinker No alcohol consumption in the last 12 months or drink frequency fewer than once a week  
 Light drinker Alcohol consumption frequency at least once a week and 0–2 (females) or 0–3 (males) drinks in the previous week  
 Moderate drinker 3–14 (females) or 4–21 (males) drinks in the previous week  
 Heavy drinker ≥ 14 (females) or ≥ 21 (males) drinks in the previous week, or binging behavior on a weekly basis (≥ 5 drinks on any occasion)  
Daily fruit and vegetable consumption 2
 Low consumption 0 to less than 3 times daily  
 Medium consumption 3 to less than 6 times daily  
 High consumption 6 or more times daily  
Cigarette smoking 4
 Non-smoker Never a smoker or former occasional smoker with < 100 lifetime cigarettes  
 Former heavy smoker Former smoker [≥ 1 pack (25 cigarettes)/day]  
 Former light smoker Former smoker [< 1 pack (25 cigarettes)/day]  
 Heavy smoker Current smoker [≥ 1 pack (25 cigarettes)/day]  
 Light smoker Current smoker [< 1 pack (25 cigarettes)/day]  
Leisure physical activity (kcal/kg/day) 4 knot restricted cubic spline 3
Sociodemographic characteristics and self-perceived measures Age (years) 5 knot restricted cubic spline 4
Ethnicity 1
 White   
 Non-white   
Immigration status 2
 Canadian born   
 Recent immigrant Immigrated < 10 years  
 Non-recent immigrant Immigrated ≥ 10 years  
Household income 4
 Quintile 1 Lowest 20%  
 Quintile 2   
 Quintile 3   
 Quintile 4   
 Quintile 5 Highest 20%  
Home ownership 1
 Yes   
 No   
Education 2
 Less than secondary school graduation   
 Secondary school graduation   
 Post-secondary education (complete and partial)   
Marital status 2
 Single never married   
 Domestic partner (married/common law)   
 Widowed/separated/divorced   
Body mass index (BMI) (kg/m2) 5 knot restricted cubic spline 4
Self-perceived general health 4
 Excellent   
 Very good   
 Good   
 Fair   
 Poor   
Self-perceived life stress 4
 Not at all   
 Not very   
 A bit stressful   
 Quite a bit   
 Extremely stressful   
Self-perceived community belonging 3
 Very strong   
 Somewhat strong   
 Somewhat weak   
 Very weak   
Chronic conditions Physician diagnosed chronic conditions 17
 Including asthma, arthritis, back problems, high blood pressure, migraines, emphysema, chronic obstructive pulmonary disease, diabetes, heart disease, cancer, intestinal ulcers, stroke, urinary incontinence, bowel disease, mood disorder, or anxiety disorder Yes; no for each individual chronic condition  
Area-based measures Rurality 1
 Population center Population of at least 1000 and a density of ≥ 400 people per square kilometer based on current census population counts  
 Rural area Population concentration or densities below the urban threshold based on current census population counts  
Material deprivation 4
 Quintile 1 Least deprived  
 Quintile 2   
 Quintile 3   
 Quintile 4   
 Quintile 5 Most deprived  
Ethnic concentration 4
 Quintile 1 Least concentrated  
 Quintile 2   
 Quintile 3   
 Quintile 4   
 Quintile 5 Most concentrated  
Residential instability 4
 Quintile 1 Least unstable  
 Quintile 2   
 Quintile 3   
 Quintile 4   
 Quintile 5 Most unstable  
Dependency 4
 Quintile 1 Least dependent  
 Quintile 2   
 Quintile 3   
 Quintile 4   
 Quintile 5 Most dependent  
  1. 1Degrees of freedom