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Table 2 Incidence of headache or back pain after lumber puncture

From: Optimal management after paediatric lumbar puncture: a randomized controlled trial

Events 0.5 h LSFSL
(n = 201)
4 h LSFSL
(n = 199)
Z value P value Non-inferiority margin Rate difference 95% confidence interval
PLPH, n(%) 12(5.97%) 13(6.53%) 2.298 0.011 −0.05 0.0056 −0.0418 to 0.0531
PLPBP, n (%) 14(6.97%) 17(8.54%) 2.460 0.007 −0.05 0.0157 −0.0366 to 0.0682
Composite endpoint, n(%) 24(11.94%) 25(12.56%) 1.715 0.043 −0.05 0.0062 −0.058 to 0.0705
  1. LSFSL lying in the supine position without pillow and fasting for solids and liquids, PLPBP post lumbar puncture lower back pain, PLPH post lumbar puncture headache