Table 4 Odds ratios (OR) to have PIM in 2013 in nested models for patients in 2011 (n = 11,973)

PIM

No

1

1

1

1

Yes

16.64 (14.28–19.40)*

16.70 (14.31–19.47)*

16.01 (13.71–18.70)*

15.10 (12.91–17.91)*

Gender

Women

1

1

1

1

Men

0.91 (0.78–1.06)

0.90 (0.77–1.06)

0.90 (0.77–1.06)

0.91 (0.77–1.07)

Age

75–79

1

1

1

80–84

0.97 (0.82–1.16)

0.96 (0.81–1.15)

0.96 (0.80–1.15)

85–89

0.84 (0.68–1.05)

0.83 (0.66–1.03)

0.82 (0.66–1.03)

≥90

1.01 (0.75–1.36)

1.01 (0.75–1.36)

1.00 (0.74–1.35)

Number of chronic conditions

0

1

1

1

1.24 (0.90–1.70)

1.23 (0.89–1.69)

2–4

1.40 (1.07–1.83)*

1.36 (1.03–1.78)*

5–7

1.52 (1.13–2.04)*

1.43 (1.06–1.93)*

≥8

1.96 (1.38–2.78)*

1.80 (1.25–2.58)*

Polypharmacy

< 5

1

≥5

1.18 (0.99–1.40)