Table 2 Odds ratios of low or high plasma potassium associated with baseline patient characteristics – Multinomial logistic regression using patients with plasma potassium of 4–5 mmol/L as the reference group

Age (per year)

0.99 (0.98–1.00)

0.98 (0.96–0.99)

Women vs men

1.49 (1.16–1.90)

0.47 (0.30–0.72)

1.35 (0.99–1.83)

1.15 (0.66–1.99)

<15

0.11 (0.05–0.23)

29.65 (10.87–80.88)

15–30

0.26 (0.18–0.38)

13.58 (5.71–32.3)

30–45

0.47 (0.34–0.63)

5.70 (2.42–13.45)

45–60

0.67 (0.49–0.90)

2.70 (1.07–6.85)

>60

1

1

<19

1.46 (0.83–2.59)

1.49 (0.65–3.43)

19–25

1

1

25–30

0.85 (0.66–1.10)

0.78 (0.51–1.20)

>30

0.78 (0.57–1.07)

1.05 (0.65–1.73)

Never smoked

1

1

Former smoker

0.85 (0.66–1.11)

1.02 (0.67–1.54)

Active smoker

0.76 (0.54–1.06)

1.66 (1.03–2.67)

1.01 (1.00–1.02)

1.01 (0.99–1.02)

0.63 (0.46–0.88)

0.81 (0.51–1.28)

<3

1

1

3–30

1.07 (0.82–1.40)

1.25 (0.76–2.08)

>30

0.80 (0.59–1.10)

1.13 (0.67–1.90)

Diabetes

0.86 (0.66–1.13)

1.56 (1.04–2.34)

0.99 (0.99–1.00)

1.01 (1.00–1.01)

≥35

1

1

<35

1.23 (0.87–1.74)

1.23 (0.76–1.98)

Serum potassium increasing drugs^a

0.58 (0.44–0.78)

2.50 (1.17–5.35)

1.70 (1.33–2.17)

1.01 (0.69–1.49)