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Table 1 Baseline characteristics of patients with stroke

From: Impact of the COVID-19 pandemic on emergency admission for patients with stroke: a time series study in Japan

Variables

Pre-COVID-19 period

COVID-19 period

SMD

P value

n

19,709

16,975

  

Age, N, %

  

0.021

0.649

 0–44

308 (1.6)

242 (1.5)

  

 45–54

916 (4.6)

752 (4.4)

  

 55–64

1790 (9.1)

1508 (8.9)

  

 65–74

4693 (23.8)

3986 (23.5)

  

 75–84

6702 (34.0)

5846 (34.4)

  

 85-

5300 (26.9)

4641 (27.3)

  

Sex (Female), N, %

8395 (42.6)

7234 (42.6)

 < 0.001

0.976

BMI, N, %

  

0.046

0.002

 < 18.5

2264 (11.7)

1964 (11.7)

  

 18.5–24.9

11,111 (57.2)

9521 (56.8)

  

 25–29

3704 (19.1)

3403 (20.3)

  

 30–34

679 (3.5)

547 (3.3)

  

 35 and over

693 (3.6)

600 (3.6)

  

 NA

970 (5.0)

714 (4.3)

  

mRS at admission, N, %

  

0.028

0.324

 0

8658 (44.1)

7458 (44.0)

  

 1

3650 (18.6)

3073 (18.1)

  

 2

2451 (12.5)

2186 (12.9)

  

 3

1896 (9.6)

1704 (10.1)

  

 4

1936 (9.9)

1674 (9.9)

  

 5

842 (4.3)

663 (3.9)

  

 Other

221 (1.1)

185 (1.1)

  

CCI, N, %

  

0.014

0.618

 0

16,717 (84.8)

14,362 (84.6)

  

 1

2538 (12.9)

2191 (12.9)

  

 2

399 (2.0)

377 (2.2)

  

 3

55 (0.3)

45 (0.3)

  

Admission pathway, N, %

  

0.049

0.002

 Home

16,315 (82.8)

14,103 (83.1)

  

 Facility

1456 (7.4)

1323 (7.8)

  

 Transfer

1917 (9.7)

1524 (9.0)

  

 Else

21 (0.1)

25 (0.1)

  

Stroke of onset time, N, %

  

0.052

 < 0.001

 3 days or less

16,629 (84.6)

14,438 (85.2)

  

 4–7 days

928 (4.7)

861 (5.1)

  

 8 days or more

1796 (9.1)

1471 (8.7)

  

 Asymptomatic

302 (1.5)

172 (1.0)

  

Ambulance, N, %

9950 (50.5)

8853 (52.2)

0.033

0.002

  1. BMI body mass index, JCS Japan Coma Scale, BI Barthel Index, CCI Carlson Comorbidity Index, SMD standardised mean difference