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Table 1 Comparison of demographic and clinical characteristics of patients who visited primary care for any reason to patients who visited for COVID-19, RTI, or a non-respiratory illness (negative)

From: Understanding the impact of COVID-19 on antibiotic use in Canadian primary care: a matched-cohort study using EMR data

 

All patients

COVID-19 patients

p value

All patients

RTI

p value

All patients

Negative

p value

Population size, n

855,434

19,890

 

855,434

18,773

 

855,434

19,890

 

Female

478,381 (56.0)

10,994 (55.3)

0.0477

478,381 (56.0)

10,591 (56.4)

0.2326

478,381 (56.0)

10,994 (55.3)

0.0477

Age groups

 0–18

145,791 (17.5)

3,826 (19.2)

< .0001

145,791 (17.5)

3,791 (20.2)

< .0001

145,791 (17.5)

3,826 (19.2)

< .0001

 19–39

193,573 (23.3)

6,894 (34.7)

193,573 (23.3)

6,178 (32.9)

193,573 (23.3)

6,894 (34.7)

 40–64

285,520 (34.3)

7,205 (36.2)

285,520 (34.3)

6,845 (36.5)

285,520 (34.3)

7,205 (36.32)

 65 + 

206,266 (24.8)

1,965 (9.9)

206,266 (24.8)

1,959 (10.4)

206,266 (24.8)

1,965 (9.9)

Province

 British Columbia

68,756 (8.0)

2,036 (10.2)

< .0001

68,756 (8.0)

2,010 (10.7)

< .0001

68,756 (8.0)

2,036 (10.2)

< .0001

 Alberta

195,963 (22.9)

7,055 (35.5)

195,963 (22.9)

6,926 (36.9)

195,963 (22.9)

7,055 (35.5)

 Ontario

541,006 (63.2)

10,598 (53.3)

541,006 (63.2)

9,645 (51.4)

541,006 (63.2)

10,598 (53.3)

 Nova Scotia

46,344 (5.4)

174 (0.9)

46,344 (5.4)

174 (0.93)

46,344 (5.4)

174 (0.9)

 Newfoundland

3,365 (0.4)

27 (0.1)

3,365 (0.4)

18 (0.10)

3,365 (0.4)

27 (0.1)

Location

 Urban

679,043 (82.5)

17,450 (90.5)

< .0001

679,043 (82.5)

16,912 (90.1)

< .0001

679,043 (82.5)

16,941 (86.6)

< .0001

Social deprivation

 Most deprived (4,5)

298,003 (34.8)

6,477 (32.6)

< .0001

298,003 (34.8)

5,910 (31.5)

< .0001

298,003 (34.8)

7,149 (35.9)

0.0012

Material deprivation

 Most deprived (4,5)

239,374 (28.0)

4,727 (23.8)

< .0001

239,374 (28.0)

4,330 (23.1)

< .0001

239,374 (28.0)

6,251 (31.4)

< .0001

Pregnant

8,350 (0.98)

312 (1.6)

< .0001

8,350 (0.98)

212 (1.13)

0.0350

8,350 (1.0)

245 (1.2)

0.0003

HIV infection

663 (0.08)

50 (0.2)

< .0001

663 (0.08)

11 (0.06)

0.3558

663 (0.08)

7 (0.04)

0.0329

Cancer

76,581 (8.9)

1,466 (7.4)

< .0001

76,581 (8.95)

1,972 (10.50)

< .0001

76,581 (8.9)

1,823 (9.2)

0.2981

Smoking

 Non-smoker

270,512 (31.6)

7,296 (36.7)

< .0001

270,512 (31.6)

7,466 (39.8)

< .0001

270,512 (31.6)

8,552 (43.0)

< .0001

 Past smoker

77,108 (9.0)

1,441 (7.2)

77,108 (9.0)

1,669 (8.9)

77,108 (9.0)

1,592 (8.0)

 Smoker

101,384 (11.8)

2,020 (10.2)

101,384 (11.8)

2,111 (11.2)

101,384 (11.8)

2,270 (11.4)

 Unknown

406,430 (47.5)

9,133 (45.9)

406,430 (47.5)

7,527 (40.1)

406,430 (47.5)

7,476 (37.6)

Alcohol use

 Yes

222,239 (26.0)

5,506 (27.7)

0.0589

222,239 (26.0)

5,244 (27.9)

0.7579

222,239 (26.0)

5,482 (27.6)

0.0003

 No

69,735 (8.2)

1,810 (9.1)

69,735 (8.2)

1,921 (10.2)

69,735 (8.2)

2,224 (11.2)

 Unknown

563,460 (65.9)

12,574 (63.2)

563,460 (65.9)

11,608 (61.8)

563,460 (65.9)

12,184 (61.3)

Obese

178,214 (20.8)

4,314 (21.7)

0.0033

178,214 (20.8)

4,316 (22.99)

< .0001

178,214 (20.8)

3,857 (19.4)

< .0001

Chronic conditions

 0

306,017 (35.8)

8,594 (43.2)

< .0001

306,017 (35.8)

5,392 (28.7)

< .0001

306,017 (35.8)

7,757 (39.0)

< .0001

 ≥ 1

549,417 (64.2)

11,296 (56.8)

549,417 (64.2)

13,381 (71.3)

549,417 (64.2)

12,133 (61.0)