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Table 6 VAS that assessed physician's and patients' overall opinions on improvementa during treatment (intent-to-treat data set).

From: Chinese herbal recipe versus diclofenac in symptomatic treatment of osteoarthritis of the knee: a randomized controlled trial [ISRCTN70292892]

Variable Treatment group n Week 1 Week 2 Week 3 Week 4
Physician's overall opinion DJW 98b 56.69 (11.32) 57.30 (11.32) 60.06 (12.47) 62.55 (11.67)
  Diclofenac 97b 59.84 (7.53) 59.63 (7.74) 62.11 (7.57) 63.35 (7.90)
Patients' overall opinion DJW 98b 32.58 (23.18) 45.53 (24.74) 58.10 (26.84) 71.13 (24.68)
  Diclofenac 97b 37.48* (18.59) 50.24 (18.79) 62.88 (19.75) 75.30 (17.95)
  1. Data represent mean (SD). a0 = no improvement, 100 = best possible improvement. b2 patients in the DJW group and 3 patients in the diclofenac group could not be assessed due to loss to follow up or withdrawal during week 0. *p < 0.05 versus the DJW group at the corresponding week.