| Methods |
Design: prospective cohort.
Quality assessment
Control for confounding: A.
Follow‐up: A.
Blinding: A for weight, B for morbidity measures. |
| Participants |
193 healthy, term Iranian infants followed at 1 of 5 randomly urban health centres. |
| Interventions |
EBF = no other liquid or solid before 6 months (n = 98).
MBF = EBF for 4 months, then complementary foods. |
| Outcomes |
Weight and length gains; incidence of respiratory and gastrointestinal infection during the period of 4 to 6 months. |
| Notes |
1. EBF and MBF infants 'matched' for sex and for weight and length at 4 months, but matching criteria for weight and length not provided.
2. 2 EBF and 5 MBF infants excluded for "noncompliance" with self‐selected group assignment. |
| Risk of bias |
| Bias |
Authors' judgement |
Support for judgement |
| Allocation concealment (selection bias) |
Unclear risk |
D ‐ Not used |
