From:  Effect of a smartphone-based educational toolkit on behavioural outcomes in personal care product use: a randomized controlled trial

 Differences in control and intervention group means at baseline and follow-up (n = 66).

VariableControl (n = 36)Intervention (n = 30)Mean difference95% CI
Paraben-free PCP behaviour
(7–35)
3.41 (5.44)3.25 (5.58)–0.16–2.88, 2.57
Knowledge and access to information
(7–35)
0.70 (4.26)4.66 (3.81)+3.961.95, 5.96
Health beliefs
(5–25)
0.09 (2.43)0.72 (4.15)+0.63–1.02, 2.27
Risk perception
(5–25)
0.97 (2.50)1.93 (3.87)+0.96–0.61, 2.54

Bold numbers indicate that “Knowledge and access to information” showed statistically significant differences in the intervention group compared with the control group.