Predictions of the Length of Lumbar Puncture Needles

Table 5

Estimators for the depth at L3-L4.

Variables	Estimate	SD	value	value
Intercept	1.731	0.214	8.083	<0.001
Weight/height	0.100	0.005	19.364	<0.001
Men
Intercept	1.272	0.311	4.083	<0.001
BMI	0.182	0.012	15.018	<0.001
Women
Intercept	1.682	0.327	5.142	<0.001
Weight	0.067	0.005	12.567	<0.001