Table 2.

Baseline, injury, and surgery details for all participants and qualified and disqualified groups.

	Total cohort	Qualified group	Disqualified group	P-value
	(N = 73)	(N = 64)	(N = 9)
Baseline data
Age (year)	31.6 ± 5.6	31.3 ± 5.2	34.1 ± 7.5	0.154a
Height (cm)	174.0 ± 3.7	174.0 ± 3.8	174.0 ± 3.5	0.991a
Weight (kg)	74.1 ± 6.9	74.4 ± 6.8	72.2 ± 8.4	0.389a
BMI (kg/m2)	24.5 ± 2.3	24.6 ± 2.2	23.9 ± 2.8	0.398a
Flying time (hours)	1,458.4 ± 1,311.4	1,415.0 ± 1,268.5	1,766.9 ± 1,638.3	0.455a
Service
Air Force (n)	57 (78.1%)	52 (91.2%)	5 (8.8%)	0.189b
Army (n)	16 (21.9%)	12 (75.0%)	4 (25.0%)
Tobacco use
Yes (n)	33 (45.2%)	28 (84.8%)	5 (15.2%)	0.758b
No (n)	44 (54.8%)	36 (90.0%)	4 (10.0%)
Injury condition
Cause of injury
Military training (n)	18 (24.7%)	50 (92.6%)	5 (7.4%)	0.290b
Daily activities (n)	55 (75.3%)	14 (77.8%)	4 (22.2%)
Injury type
Contact (n)	11 (15.1%)	55 (93.2%)	7 (6.8%)	0.886b
Non-contact (n)	62 (84.9%)	9 (81.8%)	2 (18.2%)
Meniscus injury
Yes (n)	42 (57.5%)	33 (78.6%)	9 (21.4%)	0.017b
No (n)	31 (42.5%)	31 (100.0%)	0 (0.0%)
Surgery information
PIT (months)	7.5 ± 9.0	5.1 ± 4.9	24.3 ± 13.1	0.002a
≤3 months (n)	39 (53.4%)	38 (97.4%)	1 (2.6%)	0.010b
>3 months (n)	34 (46.6%)	26 (76.5%)	8 (23.5%)
Graft size
≤8 mm (n)	22 (30.1%)	18 (81.8%)	4 (18.2%)	0.541b
>8 mm (n)	51 (69.9%)	46 (90.2%)	5 (9.8%)

^a Independent two-sample t-test was used.

^b Theoretical frequency ≥1 but <5 and continuously adjusted chi-square test was used.

BMI, body mass index; PIT, preoperative interval time.

Represented as means ± standard deviation or as absolute values with percentages (%). P-value for the difference between the qualified group and the disqualified group.

Significant values are shown in bold.