Performance in dynamic movement tasks and occurrence of low back pain in youth floorball and basketball players

Table 3 Cox regression analysis results for femur-pelvic angle (FPA) during single-leg vertical drop jump

Continuous variables^b,c	Univariate			Adjusted
Continuous variables^b,c	HR	95% CI	P value	HR	95% CI	P value
All LBP
Femur-pelvic angle, left side (^a)	1.04	(0.97 to 1.11)	0.240	1.04	(0.97 to 1.11)	0.310
Femur-pelvic angle, right side (^a)	1.09	(1.02 to 1.17)	0.011	1.09	(1.02 to 1.17)	0.014
Gradual onset non-traumatic LBP
Femur-pelvic angle, left side (^a)	1.04	(0.96 to 1.11)	0.370	1.03	(0.95 to 1.11)	0.480
Femur-pelvic angle, right side (^a)	1.10	(1.02 to 1.18)	0.013	1.09	(1.01 to 1.18)	0.021
Dichotomous variables^d
All LBP
Femur-pelvic angle, left side (low vs high)	1.80	(0.91 to 3.57)	0.094	1.86	(0.94 to 3.71)	0.076
Femur-pelvic angle, right side (low vs high)	2.15	(1.10 to 4.21)	0.026	2.19	(1.12 to 4.30)	0.023
Gradual onset non-traumatic LBP
Femur-pelvic angle, left side (low vs high)	1.72	(0.79 to 3.73)	0.170	1.80	(0.83 to 3.90)	0.140
Femur-pelvic angle, right side (low vs high)	2.25	(1.07 to 4.72)	0.033	2.30	(1.09 to 4.84)	0.028

HR Hazard ratio, CI confidence interval, all LBP acute traumatic and gradual non-traumatic low back pain
^a degrees
^bAdjusted with history of LBP, leg dominance
^c HR calculated per one-degree decrease
^dAdjusted with history of LBP
Femur-pelvic angle, left side high > = 80.0°, low< 80.0°
Femur-pelvic angle, right side high > = 76.3°, low< 76.3°
Statistically significant results are indicated with bold

ISSN: 1471-2474