No evidence of whole population mental health impact of the Triple P parenting programme: findings from a routine dataset

Table 1 Response rates by year of data collection

	2010	2011	2012	2013	2014	2015
Number of complete SDQs	3423	3407	4011	5045	6009	6013
Response rate	67.4	69.3	66.8	85.3	95.7	89.8
Number of nurseries returning data	126	141	101	168	188	189

ISSN: 1471-2431