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Table 1 Basic characteristics of subjects in the two groups

From: A randomized controlled trial on the effect of focal thermal therapy at acupressure points treating osteoarthritis of the knee

Variables Categories Thermal gun
(N = 38)
Heat pack
(N = 38)
p value
Age    66.58 ± 7.38 68.00 ± 6.16 0.37
Gender Male   8 (21%) 13 (34%) 0.31
Female   30 (79%) 25 (66%)  
Symptomatic side Right   24 (63%) 22 (58%) 0.82
Left   14 (37%) 16 (42%)  
Duration (year) Mean ± SD   10.00 ± 6.20 7.15 ± 4.44 0.04
Occupation Wholesale and retail trades, restaurants and hotels   8 (21%) 12 (31%) 0.25
Community, social and personal service   16 (42%) 14 (37%)  
Transport and related service, storage and communication   5 (13%) 4 (11%)  
Manufacturing   0 2 (5%)  
Construction   0 2 (5%)  
Civilian service   2 (5%) 0  
Stay at home   7 (19%) 4 (11%)  
Capable activities Kneeling Cannot 29 (76%) 30 (79%) 1.00
Can 9 (24%) 8 (21%)  
Squatting Cannot 20 (53%) 23 (61%) 0.64
Can 18 (47%) 15 (39%)  
Carry weight Cannot 24 (63%) 21 (55%) 0.64
Can 14 (37%) 17 (45%)  
Running Cannot 34 (89%) 36 (95%) 1.00
Can 4 (11%) 2 (5%)  
Vigorous knee movement Cannot 37 (97%) 37 (97%) 1.00
Can 1 (3%) 1 (3%)  
Prolonged standing Cannot 27 (71%) 22 (58%) 0.34
Can 11 (29%) 16 (42%)  
Walking Cannot 28 (74%) 26 (68%) 1.00
Can 10 (26%) 12 (32%)  
  1. * The differences of intergroup were calculated by the paired T test.