Table 3 Baseline characteristics of included and excluded in the MRCSDH trial

Age, years

70.08 ± 14.70

70.12 ± 14.53

69.01 ± 18.175

0.564

Male

1891(81.2)

1762(81.1)

129(82.2)

0.738

Nationalities

0.629

 Han

2239 (96.1)

2087(96.0)

152(96.8)

 Other

91 (3.9)

86 (4.0)

5 (3.2)

Initial assessment location

0.454

 Emergency department

1165 (50.0)

1094 (50.3)

71 (45.2)

 Outpatient clinic

1015 (43.6)

943 (43.4)

72 (45.9)

 External referral

61 (2.6)

55 (2.5)

6 (3.8)

 Inpatient ward

89 (3.8)

81 (3.7)

8 (5.1)

Level of the hospital

 Tertiary A

1964 (84.3)

1841 (84.7)

123 (78.3)

0.034

 History of trauma

1163 (49.9)

1044 (48.0)

119 (75.8)

< 0.001

 Body height

167.55 ± 10.40

167.62 ± 10.11

165.07 ± 17.43

0.327

 Weight

65.58 ± 11.40

65.61 ± 11.32

64.60 ± 14.23

0.639

Occupation

0.579

 Peasantry

870 (37.3)

804 (37.0)

66 (42.0)

 Worker

152 (6.5)

143 (6.6)

9 (5.7)

 Retiree

569 (24.4)

536 (24.7)

33 (21.0)

 Other

739 (31.7)

690 (31.8)

49 (31.2)

Residence classification

< 0.001

 First-tier

84 (3.6)

72 (3.3)

12 (7.6)

 Second-tier

1216 (52.2)

1101 (50.7)

115 (73.2)

 Other

1030 (44.2)

1000 (46.0)

30 (19.1)

Admission mRS, median [IQR]^a

2 [1–3]

2 [1–3]

1 [1–3]

0.229