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Table 1 Number and percentage of patients receiving at least one potentially inappropriate indicator and multilevel unadjusted odds ratios (95% CIs)

From: Prescriber variation in potentially inappropriate prescribing in older populations in Ireland

 

Total number of patients N = 338,725

N (%) prescribed at least one PIP

Multilevel unadjusted OR* (95% CIs)

Patient level fixed effects

   

Gender

Male

144,316

49,517 (34)

1

Female

194,409

71,592 (37)

1.12 (1.10, 1.13)

Age

   

70-74 years

128,261

41,304 (32)

1

≥ 75 years

210,464

79,805 (38)

1.30 (1.28, 1.32)

No of different repeat drug classes

   

0

28,259

950 (3)

1

1

19,533

1,278 (6)

2.01 (1.85, 2.19)

2

24,013

2,892 (12)

3.97 (3.68, 4.28)

3

28,970

5,149 (18)

6.29 (5.85, 6.75)

4

32,742

7,505 (23)

8.72 (8.13, 9.35)

5

33,538

10,078 (30)

12.64 (11.80, 13.54)

6

32,984

12,089 (37)

17.14 (16.00, 18.36)

7

29,738

12,984 (44)

22.94 (21.41, 24.57)

8

25,574

12,753 (50)

29.58 (27.59, 31.71)

9

20,908

11,755 (56)

38.12 (35.52, 40.91)

≥10

62,466

43,676 (70)

69.96 (65.40, 74.83)

GP practice level fixed effects †

No of GPs N = 1,938

% prescribed at least one PIP

Multilevel unadjusted OR (95% CI)

Gender ‡

   

Male

1,359

1,344 (99)

1

Female

557

450 (97)

0.98 (0.94, 1.01)

Area of residence

   

Urban

1,438

1,408 (98)

1

Rural

500

470 (94)

0.89 (0.86, 0.92)

Deprivation

Median

IQR

 

Deprivation

0.68

1.91

1.03 (1.02, 1.04)

  1. *OR = odds ratio.
  2. †GP level data was unavailable for 108 (5%) GPs with 6,906 (2%) patients.
  3. ‡GP gender was missing for 22 (1%) GPs with 2,578 (0.76%) patients.