Predictions of the Length of Lumbar Puncture Needles

Table 1

Demographic information of the 5 proposed models.

Author	Year	Age	Sample size	Model
Hasan	1994	Children; (age not specified)	86	0.8 + 0.05 * weight (kg)
Craig	1997	0 years–16 years	107	0.03 * height (cm)
Stocker	2005	Children	54	1.8 + 0.05 * weight (kg)
Abe	2005	25 days–80 years	175	1 + 17 * weight/height (kg/cm)
Chong	2010	6 months–15 years	279	0.93 + 10.6 * weight/height (kg/cm)