Table 2 Objective knowledge compared between experimental groups
Objectively assessed knowledge | Overall significance | Video vs. written | ||||
|---|---|---|---|---|---|---|
Video information group (n=22) | Written information group (n=21) | Total n=43 | ||||
Pre | Post | Pre | Post | |||
Knowledge about benefits (0–10 scale) | 5.7 | 7.5 | 4.3 | 6.6 | ||
Mean (SD) | 2.9 | 2.1 | 2.8 | 2.6 | ||
F(1) = 0.71; p = 0.40 | p = 0.30 | |||||
Knowledge about limitations (0–10 scale) | 3.4 | 3.8 | 3.1 | 2.8 | ||
Mean (SD) | 3.1 | 2.6 | 2.7 | 2.8 | ||
F(1) = 2.17; p = 0.15 | p = 0.04 | |||||
Knowledge about lifestyle (1–5 item) | 3.5 | 4.2 | 3.4 | 4.3 | ||
Mean (SD) | 1.1 | 1.0 | 1.3 | 0.8 | F(1) = 0.14; p = 0.71 | p = 0.52 |
