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Table 1 Descriptive statistics of studied sample (N = 5,482)

From: An exploration of the association between very early rehabilitation and outcome for the patients with acute ischaemic stroke in Japan: a nationwide retrospective cohort survey

Variable name Descriptive analysis* Missing from variables**
  Age (years, SD) 73.1 (11.7) 0
  Gender (Female %) 2,175 (39.7) 0
  mRS at pre-admission (0--1, %) 4,581 (83.6) 807
  mRS at admission (0-1, %) 965 (17.6) 746
  Consciousness level (JCS; 1-3, %) 3,200 (58.4) 236
  Comm. disorder, explanation (Mild, %) 4,279 (78.1) 419
  Comm. disorder, understanding (Mild, %) 4,453 (81.2) 426
  Brunnstrom stage, upper (Mild/No symptoms, %) 3,694 (67.4) 576
  Brunnstrom stage, lower (Mild/No symptoms, %) 3,896 (71.0) 579
  Swallowing disorder (Mild, %) 4,262 (77.8) 463
  Co-morbidity index (CI; 0-1, %) 2,796 (51.0) 0
  Use of edaravone (%) 3,230 (58.9) 0
  VEI (%) 4,068 (74.2) 0
  Training intensity (unit/day, SD) 1.54 (1.19) 0
  mRS at discharge (0-1, %) *** 2,365 (44.0) 818
  In-hospital mortality (%) 89 (1.6) 0
  Friday admission (%) 829 (5.1) 0
  1. mRS: modified Rankin scale; JCS: Japan coma scale; LOS: length of stay; VEI: very early intervention; CI: Charlson's index
  2. *: Descriptive analysis presents the number (percent) of categorical variables and the mean (standard deviation) of the continuous variables.
  3. **: Number of missing values in patients who matched the inclusion criteria.
  4. ***: mRS at discharge was available for 5,381 patients
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