Parental use of restriction has been associated with higher child weight in some studies [10, 17], but not others [8, 18]. (ijbnpa.biomedcentral.com)
Parental use of positive strategies increased after treatment, and the use of harsh and inconsistent discipline decreased as did mother experience of stress. (link.springer.com)
They found that many of the deaths in a co-sleeping environment could be explained by a significant interaction between co-sleeping and recent parental use of alcohol or drugs (31 per cent vs 3 per cent random controls) and the increased proportion of SIDS infants who had co-slept on a sofa (17 per cent vs 1 per cent). (unicef.org.uk)