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Table 4 Differences in knowledge and treatment beliefs for the intervention group and control group

From: Preparing for an orthopedic consultation using an eHealth tool: a randomized controlled trial in patients with hip and knee osteoarthritis

 

Intervention group

Control group

Group difference

(95% CI)a

Baseline

mean (S.D.)

Follow-up

mean (S.D.)

Baseline

mean (S.D.)

Follow-up

mean (S.D.)

Knowledge (0–22)

11.2 (3.7)

12.9 (4.1)

11.2 (3.7)

11.6 (4.3)

1.4 (0.6, 2.2)*

Treatment beliefs, TOA (1–5)

 Positive – PA

3.63 (0.84)

3.88 (0.79)

3.46 (0.85)

3.77 (0.83)

0.004 (−0.16, 0.17)

 Negative - PA

2.78 (1.00)

2.55 (0.92)

2.94 (0.98)

2.78 (0.91)

−0.19 (− 0.37, − 0.002)*

 Positive – PM

3.35 (0.99)

3.63 (1.03)

3.24 (1.03)

3.58 (0.92)

−0.01 (− 0.16, 0.18)

 Negative – PM

3.59 (0.81)

3.22 (0.82)

3.71 (0.74)

3.59 (0.66)

−0.30 (− 0.49, − 0.12)*

 Positive – TJR

3.98 (0.70)

3.94 (0.68)

4.06 (0.65)

4.10 (0.63)

−0.10 (− 0.21, 0.01)

 Negative – TJR

3.75 (0.79)

3.90 (0.73)

3.66 (0.84)

3.94 (0.73)

−0.08 (− 0.23, 0.06)

  1. a adjusted for baseline score of outcome (i.e. knowledge, TOA) and treatment strategy (surgery or not). *Significant for P < 0.05. TOA: Treatment Beliefs in Osteoarthritis questionnaire; PA: physical activities; PM: pain medication; TJR: joint replacement surgery