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Table 1 Baseline characteristics, stratified by province, for people with an incident prescription for an antihypertensive medication, dyslipidemia medication, antihyperglycemic medication, and anticoagulation medication*

From: Incident prescriptions for common cardiovascular medications: comparison of recent versus pre-2020 medication adherence and discontinuation in three universal health care systems

 

Ontario

Alberta

Nova Scotia

Baseline Period

Recent Period

Stand diff

Baseline Period

Recent Period

Stand diff

Baseline Period

Recent Period

Stand diff

 

n (%) unless otherwise specified

Individuals with an incident prescription for an antihypertensive medication

Population size, N

261,527

61,674

 

82,693

12,700

 

18,611

7025

 

Age, median years (Q1-Q3)

72 (68–78)

72 (68–77)

0.072

73 (69–79)

72 (69–78)

0.088

71 (68–77)

71 (68–75)

0.132

Female

145,410 (55.6)

34,768 (56.4)

0.016

44,853 (54.2)

7053 (55.5)

0.026

10,361 (55.7)

3,803 (54.1)

0.031

Neighborhood income quintile

        

0.030

Highest

52,022 (19.9)

13,108 (21.3)

0.034

Not available

Not available

 

3273 (17.6)

1298 (18.5)

Next to highest

49,781 (19.0)

12,233 (19.8)

0.020

   

3698 (19.9)

1348 (19.2)

Middle

52,874 (20.2)

12,390 (20.1)

0.003

   

3741 (20.1)

1446 (20.6)

Next to lowest

54,208 (20.7)

12,247 (19.9)

0.022

   

4133 (22.2)

1547 (22.0)

Lowest

51,951 (19.9)

11,518 (18.7)

0.030

   

3707 (19.9)

1370 (19.5)

Unknown

691 (0.3)

178 (0.3)

0.005

   

59 (0.3)

16 (0.2)

Rural residence

7,864 (12.8)

2,204 (13.7)

0.027

20,018 (24.2)

2734 (21.5)

0.064

7912 (42.5)

2829 (40.3)

0.052

Long-term care in prior 6 months

4534 (1.7)

828 (1.3)

0.032

1244 (1.5)

71 (0.56)

0.094

507 (2.7)

100 (1.4)

0.091

Hospitalization < 6 months before index date

17,526 (6.7)

4157 (6.7)

0.002

12,240 (14.8)

1534 (12.1)

0.080

1911 (10.3)

664 (9.5)

0.028

Charlson comorbidity index < 2 or missing

244,274 (93.4)

58,073 (94.2)

0.031

71,114 (86.0)

11,496 (90.5)

0.141

11,273 (60.6)

4,518 (64.3)

0.077

Polypharmacy

42,913 (16.4)

10,157 (16.5)

0.002

16,663 (20.2)

2742 (21.6)

0.035

6816 (36.6)

2439 (34.7)

0.040

Any hospitalization during 1-year follow-up

39,022 (14.9)

7753 (12.6)

0.068

14,875 (18.0)

1763 (13.9)

0.112

2684 (14.4%)

849 (12.1%)

0.069

Individuals with an incident prescription for a dyslipidemia medication

Population size, N

249,313

66,767

 

68,053

13,076

 

17,211

7304

 

Age, median years (Q1-Q3)

71 (68–76)

71 (68–75)

0.089

72 (68–77)

72 (68–76)

0.075

71 (68–76)

70 (68–75)

0.117

Female

133,896 (53.7)

36,956 (55.4)

0.033

33,766 (49.6)

6932 (53.0)

0.068

9714 (56.4)

4028 (55.1)

0.026

Neighborhood income quintile

        

0.047

Highest

49,142 (19.7)

14,315 (21.4)

0.043

Not available

Not available

 

2875 (16.7)

1346 (18.4)

Next to highest

47,769 (19.2)

13,465 (20.2)

0.025

   

3385 (19.7)

1430 (19.6)

Middle

50,091 (20.1)

13,304 (19.9)

0.004

   

3560 (20.7)

1494 (20.5)

Next to lowest

52,082 (20.9)

13,377 (20.0)

0.021

   

3853 (22.4)

1598 (21.9)

Lowest

49,655 (19.9)

12,132 (18.2)

0.044

   

3491 (20.1)

1419 (19.4)

Unknown

574 (0.2)

174 (0.3)

0.006

   

47 (0.3)

17 (0.2)

Rural residence

27,834 (11.2)

8023 (12.0)

0.027

15,408 (22.6)

2776 (21.2)

0.034

7,122 (41.4)

3,015 (41.3)

0.012

Long-term care in prior 6 months

1,812 (0.7)

424 (0.6)

0.011

549 (0.8)

62 (0.5)

0.042

289 (1.7)

64 (0.9)

0.072

Hospitalization < 6 months before index date

13,685 (5.5)

3794 (5.7)

0.008

10,919 (16.0)

1713 (13.1)

0.084

1691 (9.8)

627 (8.6)

0.043

Charlson comorbidity index < 2 or missing

233,585 (93.7)

62,884 (94.2)

0.021

56,533 (83.1)

11,473 (87.7)

0.133

10,009 (58.2)

4,630 (63.4)

0.107

Polypharmacy

57,168 (22.9)

14,916 (22.3)

0.014

18,031 (26.5)

3677 (28.1)

0.036

7,580 (44.0)

2,861 (39.2)

0.099

Any hospitalization during 1-year follow-up

31,789 (12.8)

7037 (10.5)

0.069

11,926 (17.5)

1773 (13.6)

0.110

2,348 (13.6%)

794 (10.9%)

0.085

Individuals with an incident prescription for an antihyperglycemic medication

Population size, N

102,955

31,080

 

28,616

4862

 

6195

2700

 

Age, median years (Q1-Q3)

72 (68–77)

72 (68–77)

0.023

72 (68–77)

72 (68–77)

0.048

71 (68–76)

71 (68–75)

0.037

Female

52,141 (50.6)

15,632 (50.3)

0.007

13,471 (47.1)

2231 (45.9)

0.024

3105 (50.1)

1295 (48.0)

0.043

Neighborhood income quintile

        

0.068

Highest

17,431 (16.9)

5537 (17.8)

0.023

Not available

Not available

 

952 (15.4)

465 (17.2)

Next to highest

19,052 (18.5)

6043 (19.4)

0.024

   

1236 (19.9)

515 (19.1)

Middle

21,093 (20.5)

6267 (20.2)

0.008

   

1221 (19.7)

562 (20.8)

Next to lowest

22,378 (21.7)

6701 (21.6)

0.004

   

1469 (23.7)

591 (21.9)

Lowest

22,741 (22.1)

6453 (20.8)

0.032

   

1301 (21.0)

556 (20.6)

Unknown

260 (0.3)

79 (0.3)

0

   

16 (0.3)

11 (0.4)

Rural residence

11,199 (10.9)

3393 (10.9)

0.001

7083 (24.8)

1001 (20.6)

0.100

2672 (43.1)

1095 (40.6)

0.053

Long-term care in prior 6 months

2116 (2.1)

482 (1.6)

0.038

358 (1.3)

25 (0.5)

0.079

142 (2.3)

43 (1.6)

0.051

Hospitalization < 6 months before index date

5832 (5.7)

1948 (6.3)

0.025

2975 (10.4)

470 (9.7)

0.024

504 (8.1)

177 (6.6)

0.061

Charlson comorbidity index < 2 or missing

92,516 (89.9)

28,086 (90.4)

0.017

22,125 (77.3)

4063 (83.6)

0.158

2,546 (41.1)

1,167 (43.2)

0.043

Polypharmacy

39,342 (38.2)

12,997 (41.8)

0.074

10,778 (37.7)

1925 (39.6)

0.040

   

Any hospitalization during 1-year follow-up

13,219 (12.8)

3462 (11.1)

0.052

4695 (16.4)

673 (13.8)

0.072

864 (13.9%)

314 (11.6%)

0.069

Individuals with a diagnosis of atrial fibrillation and incident prescription for an anticoagulant medication

Population size, N

61,561

16,086

 

15,435

2622

 

1534

561

 

Age, median years (Q1-Q3)

77 (71–84)

76 (71–83)

0.049

78 (72–84)

77 (71–84)

0.037

75 (70–81)

73 (69–79)

0.183

Female

33,690 (54.7)

8580 (53.3)

0.028

8083 (52.4)

1397 (53.3)

0.018

767 (50.0)

265 (47.2)

0.055

Neighborhood income quintile

        

0.102

Highest

12,475 (20.3)

3430 (21.3)

0.026

Not available

Not available

 

263 (17.1)

117 (20.9)

Next to highest

11,193 (18.2)

3064 (19.0)

0.022

   

281 (18.3)

103 (18.4)

Middle

12,167 (19.8)

3172 (19.7)

0.001

   

328 (21.4)

109 (19.4)

Next to lowest

12,990 (21.1)

3236 (20.1)

0.024

   

350 (22.8)

117 (20.9)

Lowest

12,565 (20.4)

3126 (19.4)

0.024

   

312 (20.3)

115 (20.5)

Unknown

171 (0.3)

58 (0.4)

0.015

     

Rural residence

7847 (12.7)

2200 (13.7)

0.027

4215 (27.3)

695 (26.5)

0.018

671 (43.7)

216 (38.5)

0.210

Long-term care in prior 6 months

1783 (2.9)

353 (2.2)

0.045

417 (2.7)

58 (2.2)

0.032

44 (2.9)

10 (1.8)

0.072

Hospitalization < 6 months before index date

14,343 (23.3)

3637 (22.6)

0.016

8636 (56.0)

1528 (58.3)

0.047

550 (35.9)

188 (33.5)

0.049

Charlson comorbidity index < 2 or missing

48,692 (79.1)

12,780 (79.4)

0.009

9472 (61.4)

1656 (63.2)

0.037

747 (48.7)

292 (52.1)

0.067

Polypharmacy

31,202 (50.7)

7838 (48.7)

0.039

7996 (51.8)

1365 (52.1)

0.005

776 (50.6)

280 (49.9)

0.013

Any hospitalization during 1-year follow-up

17,940 (29.1)

4372 (27.2)

0.044

5468 (35.4)

868 (33.1)

0.049

253 (16.5%)

72 (12.8%)

0.081

  1. * Baseline period is April 1, 2014 to March 31, 2019. Recent period for Ontario is April 1, 2020 to September 30, 2021, for Alberta is April 1, 2020 to March 31, 2021, and for Nova Scotia April 1, 2020 to March 31, 2022. For age, standardized difference refers to the difference in mean values