. 2019 Mar 11;14(3):e0213277. doi: 10.1371/journal.pone.0213277

Table 2. Mean score of correct answers to questions about dietary knowledge before and after the intervention.

Brasilia, Federal District, Brazil, 2016.

Mean score of correct answers to questions about dietary knowledge	Study group Mean (95% CI)		Post-intervention between-group difference Mean (95% CI)	p-value
	Intervention	Control	Post-intervention between-group difference Mean (95% CI)	p-value
Pre-intervention	7.54 (7.20–7.88)	7.19 (6.78–7.59)
Post-intervention	9.26 (8.91–9.61)	7.19 (6.77–7.61)
Post-intervention (adjusted)^*	8.95 (8.61–9.28)	7.77 (7.29–8.24)	-1.18 (-1.85–0.51)	0.001

* Data adjusted for baseline values and attendance to all meetings as covariates. Abbreviation: 95% CI: 95% confidence interval.