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Table 4 Consumers’ and biomedical students’ answers on comprehension, perceived effectiveness of the described treatment and preference for health information presentation in Cochrane PLSs (N = 245)

From: Framing the numerical findings of Cochrane plain language summaries: two randomized controlled trials

 

Mean (95% CI)

   

Consumers (n = 150)

Biomedical students (n = 95)

Variable

PLS 1

PLS 2

PLS 1

PLS 2

BF10a

BF10b

BF10c

Comprehension: Results (score 0–2)

1.43 (1.31 to 1.55)

1.59 (1.50 to 1.69)

1.66 (1.53 to 1.80)

1.71 (1.59 to 1.82)

1.07

2.43

0.26

Comprehension: Side effects (score 0–2)

0.93 (0.83 to 1.04)

1.35 (1.23 to 1.49)

1.51 (1.38 to 1.63)

1.77 (1.65 to 1.89)

1.80 × 108

3.15 × 108

0.45

Perceived effectiveness of treatment (score 1–10)

4.53 (4.12 to 4.96)

4.93 (4.48 to 5.34)

4.84 (4.44 to 5.24)

5.35 (4.97 to 5.73)

77.86

0.50

0.17

Preference for health information presentation (score 1–10)

6.04 (5.65 to 6.52)

6.06 (5.60 to 6.53)

5.47 (5.03 to 5.92)

5.78 (5.39 to 6.16)

0.45

0.62

0.26

  1. Comprehension score is calculated as the sum of correct answers to questions in a PLS focused on the benefits or side effects of treatment. Each PLS had 4 questions, two focusing on benefits and two on side effects. CI confidence interval, PLS plain language summary
  2. aRepeated measures ANOVA comparison of PLS 1 and PLS 2
  3. bRepeated measures analysis, between subject effects analysis Sample
  4. cRepeated measures ANOVA interaction of effects of PLSs and Sample