Children whose families reported having a cat when they were 4 to 5 years old, but not at age 1, showed higher scores for certain emotional and behavioral difficulties at ages 7 to 8. The researchers measured symptoms through questionnaires rather than determining whether the children had been clinically diagnosed with mental health conditions. That distinction is important because an association between two things does not establish that one caused the other
The analysis included 1,893 families participating in Spain’s INfancia y Medio Ambiente, or INMA, mother-child research project. Researchers used information from four regional groups in Valencia, Sabadell, Asturias and Gipuzkoa to examine the relationship between early pet ownership and later childhood mental health. Initial recruitment for these groups took place between 2003 and 2008
The researchers wanted to understand whether having an animal during early childhood was associated with emotional and behavioral outcomes several years later. They compared children whose families consistently reported having pets with those whose families reported animals at only one of the two measured ages. This approach helped the researchers examine whether the timing of pet ownership mattered, although it could not capture every change in a family’s circumstances
Researchers collected information about pets when children were a