Table 2.

Mean attitude, knowledge, confidence and effectiveness scores by length of cumulative breastfeeding experience

	Mean score (95% confidence interval)				anova
	No breastfeeding experience (n = 67)	≤26 weeks cumulative experience (n = 20)	27–52 weeks cumulative experience (n = 31)	>52 weeks cumulative experience (n = 37)
Attitudes	4.00*, †	3.65*‡	3.94 §	4.23 †‡§	F 3,151 = 16.83
	(3.90, 4.11)	(3.51, 3.80)	(3.79, 4.09)	(4.09, 4.38)	P < 0.001
Knowledge	3.36*	3.23 †‡	3.45 †	3.55*‡	F 3,151 = 16.33
	(3.30, 3.41)	(3.07, 3.39)	(3.34, 3.56)	(3.45, 3.65)	P < 0.001
Confidence	2.65*†‡	3.30*	3.61 †	3.73 ‡	F 3,151 = 8.99
	(2.41, 2.88)	(2.99, 3.61)	(3.28, 3.95)	(3.49, 3.97)	P < 0.001
Perceived effectiveness	2.70*†	3.10 ‡	3.55*	3.87 †‡	F 3,151 = 6.73
	(2.49, 2.92)	(2.73, 3.47)	(3.18, 3.91)	(3.64, 4.09)	P < 0.001

^*,†,‡,§ Means followed by the same symbols in the same row indicate significant differences (P < 0.05).