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developmental milestone

Time frame of behaviors achieved during normal development of infants & children. 2 months: smile 4 months: grasps rattle 6 months: roll over 9 months: sit without support, waves bye-bye 12 months: stand 15 months: walk, 3 words 20 months: run, 6 words 2 years: build a tower of 4 blocks 3 years: - name friend, put on shirt, draw a circle, speak in short sentences, take turns in a game cooperatively, pedal a tricycle, complete puzzles of 3-4 pieces, build a tower of > 6 blocks 4 years; buttoning & unbuttoning shirt [2] 5 years: count 5 blocks, copy

General

developmental assessment

References

  1. Guide to Physical Examination & History Taking, 6th edition, Bates B, JB Lippincott, Philadelphia, 1995, pg 657
  2. NEJM Knowledge+ Question of the Week April 7, 2020 https://knowledgeplus.nejm.org/question-of-week/4632/
  3. Scharf RJ et al. Developmental milestones. Pediatr Rev 2016 Jan; 37:25 PMID: 26729779
  4. Hagan JF et al. Bright Futures: Guidelines for health supervision of infants, children, and adolescents (pocket guide, 4th edition): Appendix: Developmental milestones for developmental surveillance at preventive care visits (page 113). American Academy of Pediatrics, 2017. https://brightfutures.aap.org/Bright%20Futures%20Documents/BF4_POCKETGUIDE.pdf
  5. Centers for Disease Control & Prevention (CDC) CDC's developmental milestones. Feb 8, 2019 https://www.cdc.gov/ncbddd/actearly/milestones/index.html