Table 5.

Comparison of pulmonary functional test results between the growth-friendly and posterior spinal fusion groups

Parameters		Growth-friendly group (n = 12)	Posterior spinal fusion group (n = 24)	p value
Preoperative (%)	FEV1	64 (49 to 79)	66 (48 to 82)	0.48
	FVC	67 (51 to 82)	69 (52 to 79)	0.31
	FEV1/FVC	80 (74 to 89)	79 (72 to 88)	0.43
Latest follow-up (%)	FEV1	72 (57 to 82)	73 (58 to 86)	0.57
	FVC	75 (58 to 88)	70 (56 to 87)	0.61
	FEV1/FVC	82 (75 to 93)	81 (76 to 90)	0.44

Data are presented as the median (range). FEV1 = forced expiratory volume in 1 second; FVC = forced vital capacity.