Published length-based weight estimation methods
| Method | Lower limit | Upper limit | General observations | Studies |
|---|---|---|---|---|
| Broselow tape26 | 46 cm | 143 cm 12 year | ▸ derived from a US cohort (n>20 000) ▸ tends to underestimate weight ▸ accuracy decreases as age increases ▸ accuracy substantially reduced in the overweight and obese ▸ accuracy differs in different ethnic groups ▸ fails to predict weight in 1/3rd of children | 11,17–21, 25, 26, 32–39 |
| DWEM27 | 50 cm | 175 cm | ▸ derived from a US cohort (n=258) ▸ bias is highest at the extremes of weight ▸ less bias over a broader range of weights than Broselow | 19, 27, 34 |
| Malawi tape28 | 45 cm | 130 cm | ▸ modified version of the Broselow Tape ▸ derived from a Malawi cohort (n=729) ▸ performs well in Malawi children 4–14 kg | 28 |
| Oakley Table29 | 50 cm | 160 cm 14 year | ▸ excerpted from a general reference ▸ accuracy differs in different ethnic groups ▸ tends to overestimate at the extremes of weight | 17, 19 |
| Traub-Johnson30 | 1 year | 18 year | ▸ derived from a US cohort (n=122) ▸ tends to underestimate weight ▸ accuracy decreases as weight increases | 19 |
| Traub-Kitchen31 | 1 year 74 cm | 17 year | ▸ derived from a US cohort (n>20 000) ▸ tends to underestimate weight ▸ accuracy decreases as weight increases | 19 |
DWEM, devised weight estimation method.