Among adult children from intact families, 80 % marry, and 9 % of them divorce (in other words, 73 % of children of intact families are happily married). (psychpage.com)
Similarly, the National Child Development Study in the UK, which has followed up a large general population sample of children born in 1958, found that children from single - parent families were at greater risk for psychological problems than a matched group of children from intact families not only in childhood (Ferri, 1976) but also in early adulthood (Chase - Lansdale et al., 1995) and middle age (Elliot and Vaitilingam, 2008). (academic.oup.com)
Children from dissolved families generally have more internalizing and externalizing problems, lower academic achievements and poorer social adjustment, compared with children from intact families (Frisco et al. [2007]; Størksen et al. [2006]; Sun and Li [2002]-RRB-, and the negative association between parental divorce and adjustment persist into adulthood (Amato and Sobolewski [2001]; Størksen et al. [2007]-RRB-. (bmcpsychology.biomedcentral.com)