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Table 1 Characteristics of the studies

From: Ethics reporting practices in randomized controlled trials of physical therapy interventions after stroke

Year 2004 (n = 13) 2009 (n = 28) 2014 (n = 39) p All studies (n = 80)
5-year Impact factora 2.967 (2.447/4.625) 4.206 (2.455/4.626) 2.179 (1.647/3.503) .011b 2.784 (2.130/4.626)
Trial registeredc 0 (0.0) 2 (7.1) 12 (30.8) .009d 14 (17.5)
Sample sizea 28 (20.0/47.0) 39 (31.5/65.0) 34 (23.0/52.5) .212b 38 (23.5/56.5)
Intervention groupsc
 2 groups 11 (84.6) 21 (75.0) 34 (87.2) .418d 66 (82.5)
 ≥ 3 groups 2 (15.4) 7 (25.0) 5 (12.8)   14 (17.5)
Etiologyc
 Ischemic 1 (7.7) 8 (28.6) 5 (12.8)   14 (17.5)
 Hemorrhagic 0 (0.0) 0 (0.0) 1 (2.6) .305d 1 (1.2)
 Mixed 7 (53.8) 16 (57.1) 21 (53.8)   44 (55.0)
 None declared 5 (38.5) 4 (14.3) 12 (30.8)   21 (26.2)
Phase of the disease-onsetc
 < 6 months 4 (30,8) 15 (53.6) 14 (35.9)   33 (41.2)
 ≥ 6 months 8 (61.5) 12 (42.9) 23 (59.0) .516d 43 (53.8)
 None declared 1 (7.7) 1 (3.6) 2 (5.1)   4 (5.0)
Placebo-sham comparatorc 2 (15.4) 5 (17.9) 9 (23.1) .807d 16 (20.0)
Intervention dosing-hoursae 18.0 (6.0/22.5) 15.5 (11.0/27.0) 24.0 (10.0/34.7) .139b 18.0 (9.0/30.0)
At least one outcomec
 Favorable 9 (69.2) 20 (71.4) 25 (64.1) .855d 54 (67.5)
 Nonsignificant 11 (84.6) 25 (89.3) 36 (92.3) .614d 72 (90.0)
 Unfavorable 1 (7.7) 1 (3.6) 3 (7.7) .705d 5 (6.2)
PEDro scorea 6 (5.0/6.0) 6 (5.0/7.0) 6 (5.0/7.5) .073b 6 (5.0/7.0)
  1. a median (1th quartile/3rd quartile)
  2. b Kruskal-Wallis test
  3. c absolute frequencies (percentages)
  4. d Fisher exact test
  5. e after Expectation-maximization imputation