Table 5. Change in parental satisfaction with a ‘no prescribing’ intervention.

Study	Age	Outcome	Intervention	Control	OR [95%	NNT	Mean	Significance	Risk
					CI] or		difference		of
					difference				bias
Chao	2–12	Proportion of parents	91/100	101/106	0.50	23	-	0.345	Min.
	yr	reporting “very or	(91%)	(95%)	[0.14–
		extremely satisfied”			1.74]
McCormick	6 mo-	Parent satisfaction	44.6/52	44.6/52	-	-	0	NS	Min.
	2 yr	score (range 0–52)

mo: month; Min: minimum; NNT: number needed to treat; NS: not significant; OR: odds ratio; yr: years. Italicized p-values were those reported in original study.