Table 3 Interactions between Sodium category, eGFR, age and clinical setting at baseline on all-cause mortality

Model with eGFR interaction

 eGFR >  = 60 ml/min/1.72m²

2.28 (2.04–2.51)

1.00 (Ref.)

3.28 (2.19–4.72)

 eGFR < 60 ml/min/1.72m²

1.31 (1.13–1.49)

1.00 (Ref.)

2.02 (1.44–2.68)

Model with age interaction

 Age 40

3.33 (2.72–4.02)

1.00 (Ref.)

6.96 (3.98–10.76)

 Age 50

2.67 (2.31–3.07)

1.00 (Ref.)

4.85 (3.16–6.75)

 Age 60

2.14 (1.93–2.35)

1.00 (Ref.)

3.40 (2.55–4.34)

 Age 70

1.72 (1.58–1.85)

1.00 (Ref.)

2.40 (1.91–2.96)

 Age 80

1.38 (1.25–1.50)

1.00 (Ref.)

1.70 (1.27–2.23)

Model with Clinical setting interaction

 Emergency Department

1.19 (0.99–1.41)

1.00 (Ref.)

3.09 (1.89–4.88)

 General Practice

2.70 (2.15–3.36)

1.00 (Ref.)

3.13 (1.20–5.46)

 Inpatient

1.69 (1.50–1.89)

1.00 (Ref.)

1.61 (1.15–2.17)

 Outpatient

1.90 (1.54–2.31)

1.00 (Ref.)

9.84 (4.88–18.62)