Table 1.

Population Intervention Comparator Outcome Study Design (PICOS) table

P – Population	Young mothers (mothers aged 24 years or less) in high-income countries; infants 0–6 months
I – Intervention	Any intervention
C – Comparator	Any comparator (most commonly, Usual Care)
O – Outcome	Increasing exclusive breastfeeding rates
S – Study Design	Randomized Controlled Trials and Quasi Experimental designs (prospective with a control group)