Table 3. . Perceived seriousness of opioid-related adverse events and parental analgesic self efficacy.

Adverse effect	Baseline	Immediately after intervention	Day 7 after intervention	ANOVA: F statistic; p-value
Perceived seriousness of opioid-related risks (mean ± SD; possible range: 0–5)
Nausea/vomiting	2.38 ± 1.45	2.98 ± 1.46	3.06 ± 0.98	3.86; 0.023
Oversedation	3.0 ± 1.53	4.48 ± 0.99	4.29 ± 0.91	24.26; <0.001
Addiction	4.40 ± 1.27	4.66 ± 0.81	4.71 ± 0.72	1.41; 0.249
Poor pain relief	2.97 ± 1.40	3.47 ± 1.37	3.38 ± 1.23	2.19; 0.116
Analgesic self efficacy (mean ± SD; possible range: 0–35)
Perceived self efficacy	28.34 ± 5.7	31.48 ± 4.1	32.32 ± 3.73	9.85; <0.001

ANOVA: Analyses of variance.