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Table 1 Demographic and health characteristics by attachment status

From: Assessing the impact of attachment to primary care and unattachment duration on healthcare utilization and cost in Ontario, Canada: a population-based retrospective cohort study using health administrative data

Sociodemographic Variables

Value

Unattached

Non-Enrolled Care

Attached

Total

N = 1,940,137

N = 862,476

N = 10,324,127

N = 13,126,740

14.78%

6.57%

78.65%

100.00%

Age at index date (April 1, 2021) in years

Mean (SD)

34.91 (22.50)

37.22 (22.43)

44.74 (22.67)

42.80 (22.94)

1–4 years

126,568 (6.52%)

66,556 (7.72%)

255,753 (2.48%)

448,877 (3.42%)

5–9 years

175,724 (9.06%)

55,029 (6.38%)

451,945 (4.38%)

682,698 (5.20%)

10–14 years

167,666 (8.64%)

41,995 (4.87%)

517,630 (5.01%)

727,291 (5.54%)

15–17 years

81,063 (4.18%)

25,352 (2.94%)

326,231 (3.16%)

432,646 (3.30%)

18–34 years

482,992 (24.89%)

229,429 (26.60%)

2,059,407 (19.95%)

2,771,828 (21.12%)

35–49 years

370,555 (19.10%)

175,612 (20.36%)

2,081,922 (20.17%)

2,628,089 (20.02%)

50–64 years

308,282 (15.89%)

154,377 (17.90%)

2,355,785 (22.82%)

2,818,444 (21.47%)

65–79 years

169,911 (8.76%)

87,585 (10.16%)

1,698,748 (16.45%)

1,956,244 (14.90%)

80 + years

57,376 (2.96%)

26,541 (3.08%)

576,706 (5.59%)

660,623 (5.03%)

Sex on RPDB

F

838,998 (43.24%)

442,601 (51.32%)

5,415,696 (52.46%)

6,697,295 (51.02%)

M

1,101,139 (56.76%)

419,875 (48.68%)

4,908,431 (47.54%)

6,429,445 (48.98%)

2004 rurality index for Ontario

Mean (SD)

13.74 (18.05)

12.14 (15.49)

15.41 (18.01)

14.95 (17.88)

Rural status

Urban

1,712,730 (88.28%)

800,145 (92.77%)

9,183,189 (88.95%)

11,696,064 (89.10%)

Rural

219,857 (11.33%)

59,886 (6.94%)

1,119,967 (10.85%)

1,399,710 (10.66%)

Income quintile

1 (lowest)

487,844 (25.14%)

181,902 (21.09%)

1,783,783 (17.28%)

2,453,529 (18.69%)

2

394,824 (20.35%)

170,505 (19.77%)

1,962,197 (19.01%)

2,527,526 (19.25%)

3

363,952 (18.76%)

175,025 (20.29%)

2,126,391 (20.60%)

2,665,368 (20.30%)

4

347,377 (17.90%)

169,831 (19.69%)

2,204,444 (21.35%)

2,721,652 (20.73%)

5 (highest)

337,649 (17.40%)

162,493 (18.84%)

2,222,331 (21.53%)

2,722,473 (20.74%)

Total number of ADGs

Mean (SD)

1.54 (2.32)

3.21 (2.78)

2.94 (2.75)

2.75 (2.74)

0–5 (low)

1,801,105 (92.83%)

707,733 (82.06%)

8,639,076 (83.68%)

11,147,914 (84.93%)

6–9 (moderate)

113,568 (5.85%)

125,063 (14.50%)

1,387,989 (13.44%)

1,626,620 (12.39%)

10+ (high)

25,464 (1.31%)

29,680 (3.44%)

297,062 (2.88%)

352,206 (2.68%)

COPD (diagnosis prior to index)

20,596 (1.06%)

13,994 (1.62%)

213,986 (2.07%)

248,576 (1.89%)

CHF (diagnosis prior to index)

18,638 (0.96%)

12,253 (1.42%)

202,982 (1.97%)

233,873 (1.78%)

Diabetes (diagnosis prior to index)

79,150 (4.08%)

64,863 (7.52%)

1,043,574 (10.11%)

1,187,587 (9.05%)

Mental health in last 2 years

203,198 (10.47%)

228,929 (26.54%)

2,174,009 (21.06%)

2,606,136 (19.85%)

Hypertension (diagnosis prior to index)

201,122 (10.37%)

148,236 (17.19%)

2,514,636 (24.36%)

2,863,994 (21.82%)

Dementia (diagnosis prior to index)

16,069 (0.83%)

8,020 (0.93%)

111,948 (1.08%)

136,037 (1.04%)

  1. Note: Hypothesis testing yielded significant p−values. Column percentages are reported for categorical variables. SD: standard deviation, IQR: interquartile range, ED: emergency department, RIO: rurality index of Ontario, ADG: aggregated diagnostic group, COPD: chronic obstructive pulmonary disease, CHF: congestive heart failure, LOS: length of stay