Abstract
Excessive weight gain in infancy is an established risk for childhood obesity. Primary healthcare professionals have regular contact with infants and are well placed to monitor their growth. This review explores primary healthcare professionals' practice in monitoring growth for infants from birth to 2 years, addressing assessment methods, practitioner confidence and interventions for unhealthy weight gain. Reviewers searched four databases for studies of primary healthcare professionals working in high-income countries that reported on practice monitoring infant growth. Thirty-six eligible studies documented health professionals' practice with infants. While most clinicians regularly weighed and measured infants, some did not record measurements comprehensively. Growth monitoring occurred regularly during well-child visits but was less common during unscheduled visits. Some participants were less proficient at interpreting growth trajectories or lacked confidence in detecting excessive weight gain and in communicating concerns to parents. Few interventions addressed unhealthy growth among infants. Primary healthcare professionals require support to monitor growth trajectories effectively, to communicate appropriately with parents and to engage them in developing healthy behaviours early. Strategies are also required to monitor infants not regularly attending primary health care.