Table 2 Adjusted HRs and 95% CIs for risks of different events per trajectory of UA trajectories

Cardiac conduction block

1405/67,095

3.63

 Low-stable

549/34,922

2.22

Ref

Ref

Ref

Ref

Ref

 Moderate-stable

662/26,679

4.32

1.30 (1.16–1.46)

1.31 (1.16–1.48)

1.30 (1.16–1.47)

1.36 (1.18–1.56)

1.20 (1.05–1.38)

 High-stable

194/5494

6.04

1.82 (1.54–2.16)

1.88 (1.57–2.24)

1.86 (1.56–2.22)

2.04 (1.61–2.59)

1.57 (1.25–1.98)

 P_trend

< 0.001

< 0.001

< 0.001

< 0.001

< 0.001

Atrioventricular block

478/67,095

1.23

 Low-stable

170/34,922

0.84

Ref

Ref

Ref

Ref

Ref

 Moderate-stable

216/26,679

1.40

1.38 (1.12–1.70)

1.41 (1.14–1.74)

1.39 (1.12–1.72)

1.54 (1.20–1.96)

1.27 (0.99–1.62)

 High-stable

92/5494

2.86

2.81 (2.15–3.65)

2.97 (2.25–3.92)

2.90 (2.19–3.83)

3.62 (2.46–5.32)

2.38 (1.63–3.49)

 P_trend

< 0.001

< 0.001

< 0.001

< 0.001

0.003

Bundle branch block

942/67,095

2.43

 Low-stable

382/34,922

1.89

Ref

Ref

Ref

Ref

Ref

 Moderate-stable

455/26,679

2.96

1.28 (1.11–1.47)

1.27 (1.11–1.47)

1.27 (1.10–1.47)

1.28 (1.08–1.51)

1.18 (1.00–1.40)

 High-stable

105/5494

3.27

1.42 (1.14–1.77)

1.43 (1.14–1.80)

1.43 (1.13–1.79)

1.45 (1.07–1.95)

1.21 (0.90–1.63)

 P_trend

< 0.001

< 0.001

< 0.001

0.004

0.09