Table 3 Subgroup analysis by stratified cox regression model

 ≥ 70

193 (8.99%)

1.83 (1.11, 3.02)

 ≥ 60, < 70

161 (7.50%)

2.49 (1.54, 4.03)

 ≥ 50, < 60

331 (15.42%)

2.48 (1.67, 3.67)

 ≥ 40, < 50

513 (23.89%)

2.15 (1.63, 2.86)

 ≥ 30, < 40

600 (27.95%)

1.88 (1.51, 2.33)

 < 30

349 (16.26%)

2.45 (1.38, 4.36)

 Female

937 (43.64%)

2.01 (1.70, 2.37)

 Male

1210 (56.36%)

2.22 (1.81, 2.71)

 ≥ 140

469 (21.85%)

2.55 (1.94, 3.35)

 < 140

1677 (78.15%)

2.03 (1.78, 2.32)

 ≥ 90

327 (15.24%)

2.46 (1.76, 3.45)

 < 90

1819 (84.76%)

2.03 (1.79, 2.32)

 ≥ 40

736 (34.28%)

1.64 (1.35, 2.01)

 < 40

1411 (65.72%

2.38 (1.84, 3.07)

 < 3.9

1 (0.05%)

NA

 ≥ 3.9, < 6.1

1853 (86.31%)

2.08 (1.83, 2.37)

 ≥ 6.1

293 (13.65%)

2.39 (1.50, 3.82)

 > 5.2

609 (28.37%)

2.41 (1.86, 3.13)

 ≤ 5.2

1538 (71.63%)

2.04 (1.79, 2.33)

 ≥ 1.7

1043 (48.58%)

2.17 (1.72, 2.72)

 < 1.7

1104 (51.42%)

2.12 (1.73, 2.60)