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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.