TABLE 1

Demographics of adult respondents by health service utilisation of a random sample of the people of South Australia from face-to-face interviews (n=2898)

Outpatient# care in the previous 3 monthsp-valueInpatient care in the previous 3 monthsp-valueTotal
None≥1None≥1
Subjects770 (26.6)2128 (73.4)2716 (93.7)182 (6.3)2898 (100)
Age years, median (IQR)41.0 (27.0–53.0)52.1 (34.0–66.0)<0.00147.0 (32.0–62.0)55.5 (39.6–68.0)<0.00148.0 (32.0–63.0)
Sex<0.0010.3
 Male468 (33.0)951 (67.0)1322 (93.2)97 (6.8)1419 (49.0)
 Female302 (20.4)1177 (79.6)1394 (94.3)85 (5.7)1479 (51.0)
Australia bornf0.50.7
 Yes548 (26.2)1541 (73.8)1955 (93.6)134 (6.4)2089 (72.1)
 No222 (27.5)585 (72.5)759 (94.1)48 (5.9)807 (27.9)
Highest level of education##0.040.6
 School295 (28.4)743 (71.6)969 (93.4)69 (6.6)1038 (35.9)
 Trade, apprenticeship, certificate, diploma/degree or higher475 (25.6)1381 (74.4)1743 (93.9)113 (6.1)1856 (64.1)
Work status¶¶<0.0010.004
 Working full or part-time, self employed513 (32.0)1091 (68.0)1522 (94.9)82 (5.1)1604 (55.4)
 Not working (home duties, unemployed, retired, student, other)257 (19.9)1034 (80.1)1191 (92.3)100 (7.7)1291 (44.6)
Living arrangements++0.0030.07
 Married/de facto454 (24.7)1382 (75.3)1709 (93.1)127 (6.9)1836 (63.4)
 Separated, divorced, widowed, never married315 (29.8)743 (70.2)1003 (94.8)55 (5.2)1058 (36.6)
Region of residence0.021.0
 Metropolitan547 (25.4)1607 (74.6)2018 (93.7)136 (6.3)2154 (74.3)
 Non-metropolitan223 (30.0)521 (70.0)697 (93.7)47 (6.3)744 (25.7)
Socioeconomic indexes for area quintile0.20.2
 1 (most disadvantaged)203 (26.8)554 (73.2)702 (92.7)55 (7.3)757 (26.1)
 2139 (24.8)421 (75.2)515 (92.1)44 (7.9)559 (19.3)
 3158 (29.8)373 (70.2)502 (94.4)30 (5.6)532 (18.4)
 4135 (23.9)431 (76.1)536 (94.5)31 (5.5)567 (19.6)
 5 (most advantaged)135 (28.0)348 (72.0)460 (95.2)23 (4.8)483 (16.7)
Body mass index (BMI)§§<0.001<0.001
 Not overweight354 (32.4)738 (67.6)1035 (94.8)57 (5.2)1092 (40.0)
 Overweight+259 (26.7)710 (73.3)919 (94.8)50 (5.2)969 (35.5)
 Obese§102 (15.3)565 (84.7)602 (90.3)65 (9.7)667 (24.5)
mMRC<0.001<0.001<0.001
 0741 (28.0)1902 (72.0)2496 (94.4)147 (5.6)2643 (91.2)
 127 (15.6)146 (84.4)158 (91.3)15 (8.7)173 (6.0)
 2–42 (2.4)80 (97.6)62 (75.6)20 (24.4)82 (2.8)

Data expressed as n (%) unless otherwise noted. mMRC: modified Medical Research Council breathlessness scale. #: includes visits to general practice or specialist (other than mental health specialist) or presentation to the emergency department; : non-overweight weight category includes underweight (BMI ≤18.5 kg·m−2, n=50; 1.7% of cohort); +: BMI >25, ≤30 kg·m−2; §: BMI >30 kg·m−2; “not stated” for f: n = 2; ##: n = 4; ¶¶: n = 3; ++: n = 4; §§: 170.