For exclusively breastfed infants, iron supplementation should begin at 4 months of age (http://www.aappublications.org/content/early/2010/10/05/aapnews.20101005-1)
| Age | Disease | Preferred Test & Intervals | Notes |
| 1 | |||
| 2 | |||
| 3 | |||
| 4 | |||
| 5 | |||
| 6 | Obesity | USPSTF (and AAFP) recommend screening everyone ≥ age 6 for obesity. | |
| 7 | |||
| 8 | |||
| 9 |