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Table 1 Participant characteristics – definitions and data sources

From: Do general practice management and/or team care arrangements reduce avoidable hospitalisations in Central and Eastern Sydney, Australia?

DomainCharacteristicData sourceDescription
Socio-DemographicAge group45 and Up Study BaselineSelf-reported age at baseline
Gender45 and Up Study BaselineSelf-reported sex
Language other than English45 and Up Study BaselineWhether a participant speaks a language other than English at home (yes or no)
Country of birth45 and Up Study BaselineSelf-reported country of birth categorised as Australia or overseas
Highest qualification45 and Up Study BaselineSelf-reported highest level of educational qualification – categorised as less than year 12; year 12; trade/diploma; university or higher
Household income45 and Up Study BaselineSelf-reported household income category
Work status45 and Up Study BaselineWorking status at baseline: not working; working part-time; working full-time
Housing type45 and Up Study BaselineCurrent housing type grouped as: house; flat/unit; nursing home/ residential aged care; other (including mobile home)
Private health insurance45 and Up Study BaselinePrivate health status at baseline, grouped as: none (no private health, DVA or health care card; private health with extras; private health without extras; DVA only; health care card only
Health Risk FactorSmoking status45 and Up Study BaselineSmoking status at baseline: non-smoker; ex-smoker; current smoker
Adequate physical activity45 and Up Study BaselineBased on the amount of moderate and vigorous exercise reported: yes (adequate) – see AIHW definition; no (not adequate)
Adequate fruit and vegetable consumption45 and Up Study BaselineBased on self-reported fruit and vegetable consumption; yes (adequate) – at least 5 serves of vegetables and 2 serves of fruit; no (not adequate)
Weekly alcohol intake45 and Up Study BaselineBased on self-reported number of standard drinks each week, categorised as zero; low (<=14 drinks per week); high (> 14 drinks per week)
Body Mass Index (BMI) category45 and Up Study BaselineBased on self-reported height and weight. Categorised as underweight (< 20); normal weight (20–25); overweight (25–30); obese (> 30)
Treatment for high blood pressure45 and Up Study BaselineSelf-reported as currently taking treatment for high blood pressure (yes or no)
Treatment for high cholesterol45 and Up Study BaselineSelf-reported as currently taking treatment for high cholesterol (yes or no)
Health StatusPhysical functioning45 and Up Study BaselineBased on the Short Form 36 (SF36) standard categories
Psychological distress45 and Up Study BaselineBased on the Kessler 10 (K10) standard categories
Self-rated good/very good health45 and Up Study BaselineBased on the SF1 – classified as yes if responded as good, very good or excellent
Self-rated good/very good quality of life45 and Up Study BaselineBased on self-rated quality of life question – classified as yes if responded as good; very good or excellent
Number of chronic conditions45 and Up Study BaselineBased on self-reported diagnoses for up to six chronic diseases. These conditions were classified as: diabetes; cardiovascular disease; depression/anxiety; musculoskeletal (arthritis and osteoarthritis); asthma; and cancer.
Needs help for a disability45 and Up Study BaselineDo you regularly need help with daily tasks because of long-term illness or disability? (yes or no)
Reported a fall in the last 12 months45 and Up Study BaselineSelf-reported (yes or no)
Health care utilisationAverage number of GP visits per annumMBSCalculated across a 2-year period +/−1 year from date of recruitment. Only standard GP consultations included.
Continuity of care with - providerMBSCalculated across a 2-year period +/−1 year from date of recruitment. Only standard GP consultations included. Based on the Usual Provider Index (UPI) using scrambled provider number – a participant was classified as having continuity of care if 75% or more of their visits were with the same provider. Those with less than 4 visits within this period were classified as “infrequent GP visits”.
Hospitalised at baselineAPDCCalculated across a 2-year period +/−1 year from date of recruitment. Classified as “yes” if any hospitalisation in this period.
Saw a specialist at baselineMBSCalculated across a 2-year period +/−1 year from date of recruitment. Classified as “yes” if any specialist item in this period.