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Table 4 The association between the occurrence of PIMs and PPOs using STOPP and START respectively and 12 month mortality and hospitalisation for Māori and non- Māori participants

From: Quality of prescribing predicts hospitalisation in octogenarians: life and living in advanced age: a cohort study in New Zealand (LiLACS NZ)

Māori Hosptialisation

Participants with at least one instance of PIP

Any hospitalisation at 12 months follow-up

n (column %)

Adjusteda

OR (95% CI)

P Value

PIMs

Yes (57)

Yes

No

1.20 (0.59, 2.44)

0.619

28 (49.1)

29 (50.9)

No(189)

71 (37.6)

118 (62.4)

PPOs

Yes(99)

74 (74.7)

25 (25.3)

2.80 (1.54, 5.10)

0.001

No(147)

69 (46.9)

78 (53.1)

PIMs or PPOs

Yes(159)

78 (49.1)

81 (50.9)

2.41 (1.26, 4.59)

0.008

No(87)

21 (24.1)

66 (75.7)

Māori Mortality

Participants with at least one instance of PIP

Mortality at 12 months follow-up (n = 20) (%) n (column %)

Adjusteda

OR (95% CI)

P Value

PIMs

Yes (65)

Yes

No

1.04

(0.30, 3.70)

0.946

6 (9.2)

59 (90.8)

No (202)

14 (6.9)

188 (93.1)

PPOs

Yes (155)

18 (11.6)

137 (88.4)

3.61

(0.70, 18.56)

0.125

No (112)

2 (1.8)

110 (98.2)

PIMs or PPOs

Yes (175)

18 (10.3)

157 (89.7)

1.92

(0.36, 10.19)

0.445

No (92)

2 (2.2)

90 (97.8)

Non-Maori Hosptialisation

Participants with at least one instance of PIP

Any hospitalisation at 12 months follow-upaa

Adjusteda

OR (95% CI)

P Value

PIMs

Yes (113)

Yes

No

1.25 (0.77, 2.02)

0.371

51 (45.1)

62 (54.9)

No (285)

112 (39.3)

173 (60.7)

PPOs

Yes (197)

88 (44.7)

109 (55.3)

1.44 (0.94, 2.20)

0.090

No (201)

75 (37.3)

126 (62.7)

PIMs or PPOs

Yes (163)

109 (66.9)

54 (33.1)

1.40 (0.90, 2.17)

0.141

No (235)

141 (60.0)

94 (40.0)

Non-Maori Mortality

Patients with at least one instance of PIP

Mortality at 12 months follow-up (n = 18) (%)aaa

Adjusteda

OR (95% CI)

P Value

PIMs

Yes (113)

Yes

No

1.698

(0.575, 5.011)

0.338

8 (7.1)

105 (92.9)

No (291)

10 (3.4)

281 (96.6)

PPOs

Yes (198)

13 (6.6)

185 (93.4)

2.37 (0.71,7.86)

0.160

No (206)

5 (2.4)

201 (97.6)

PIMs or PPOs

Yes (251)

16 (6.4)

235 (93.6)

7.21 (0.90, 57.58)

0.062

No (153)

2 (1.3)

151 (98.7)

  1. Key: PIP = Potentially Inappropriate Prescribing; PIMs = Potentially inappropriate medicines; PPOs = Potential prescribing omissions; OR = Odds Ratio. a Adjusted forgender, prior 12-month GP, deprivation, CHF, number of medication, NEADL activities of daily living. For age, non-Māori participants were born in 1925. Māori participants were born in 1920–1930. Age was adjusted for in all models. aaCalculated as a percentage of non-Māori patients for whom hospitalisation data was known (n = 398). aaa Percentage total non-Māori population (n = 404)