(BSI) in a real-world setting, Sarah M. Honaker, PhD, of Indiana University, Indianapolis, and her associates, reported in the Journal of Pediatrics.
In a study of 652 parents who participated, parents started BSI when their infants were as young as less than 1 month of age and as late as 18 months of age. Most parents started BSI at 3-5 months.
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Crying generally was greatest the first night, occurring in 45% of cases when all BSI approaches were considered. It lasted a mean 43 minutes, which dropped significantly after 1 week to a mean 9 minutes (P less than .001). Crying was considered most intense (on a 1-5 scale) on the initial night of BSI, a mean 4.42, and this “was equally true for all of the BSI approaches,” Dr. Honaker and her colleagues wrote.
In most cases, the parents’ first attempt at BSI worked (83%). Success varied by BSI approach, with the highest first attempt success rate in the unmodified extinction group (90%), followed by parental presence without support (83%), modified extinction (81%), and parental presence with support (65%). Eventually, 27% of parents were successful with a different approach than the one with which they started. Most commonly, they changed from modified extinction to unmodified extinction (66% of those who changed approaches).
“The majority of parents report successfully implementing BSI at a variety of ages across infancy, primarily using extinction-based approaches,” the researchers concluded. “Few significant differences were found between approaches, suggesting that health providers should offer parents options for BSI implementation.”
SOURCE: Honaker SM et al., J Pediatr. 2018. doi: 10.1016/j.jpeds.2018.04.009.