Table 2.

Factors associated with current LBP in high school volleyball players (univariate logistic regression analysis).

					95%CI
Variables (n = 123)	B	SE	P	Odds	Min	Max
Gender	0.38	0.58	.51	1.46	0.48	4.49
Age	0.64	0.40	.12	1.89	0.86	4.17
Experience as a volleyball player	0.43	0.14	.002	1.54	1.17	2.02
BMI	0.11	0.18	.55	1.11	0.79	1.58
Court position (Spiker or others)	0.16	0.59	.79	1.18	0.37	3.77
Spike form (Only spiker)	0.32	0.40	.42	1.38	0.63	3.01
Practice time/week on weekdays	−0.01	0.06	.81	0.99	0.89	1.10
Practice time/week during holidays	0.12	0.08	.11	1.13	0.98	1.31
Stretching after practice	0.29	0.69	.68	1.33	0.35	5.10
Sleep time /week	−0.21	0.34	.55	0.81	0.42	1.59
Ito test	−0.002	0.01	.82	1.00	0.98	1.01
HBD
dominant hand side	−0.08	0.07	.27	0.92	0.80	1.06
non-dominant hand side	−0.13	0.08	.95	0.87	0.75	1.02
BB	−0.03	0.03	.36	0.97	0.91	1.03
FFD	−0.02	0.03	.47	0.98	0.93	1.04
Side FFD
dominant hand side	0.01	0.04	.84	1.01	0.93	1.10
non-dominant hand side	−0.003	0.05	.94	1.00	0.91	1.09
full-squat test (positive = 1, negative = 0)	−0.24	0.69	.73	0.79	0.21	3.03
MTT (positive = 1, negative = 0)	0.78	0.30	.009	2.18	1.22	3.89
Shoulder FL ROM
dominant hand side	−0.56	0.04	.19	0.95	0.87	1.03
non-dominant hand side	−0.09	0.06	.14	0.92	0.82	1.03
Shoulder ER ROM
dominant hand side	0.02	0.02	.30	1.02	0.98	1.07
non-dominant hand side	0.00	0.03	.99	1.00	0.95	1.05
Shoulder HAB ROM
dominant hand side	−0.05	0.02	.02	0.95	0.91	0.99
non-dominant hand side	−0.47	0.02	.02	0.95	0.92	0.99
Trunk rotation ROM
dominant hand side	0.001	0.02	.97	1.00	0.96	1.04
non-dominant hand side	0.04	0.03	.16	1.04	0.99	1.09