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Table 3 Comparison of variables for pedicle screw misplacement in the PPS side and the open side

From: Accuracy of pedicle screw insertion for unilateral open transforaminal lumbar interbody fusion: a side-by-side comparison of percutaneous and conventional open techniques in the same patients

Categorical variableP-sideO-sideP-value
Age (year ± SD)69.2 ± 10.872.1 ± 8.9NS
Gendermale1317NS
female1916NS
SideRight1416NS
Left1921NS
Fixed levelsingle2730NS
double53NS
BMI* (m/kg2 ± SD)26.3 ± 4.024.1 ± 3.6P = 0.027
  1. SD Standard deviation, BMI Body Mass Index, NS nonsignificant, P-side PPS side, O-side Open side
  2. *P < 0.05