Table 6.

Linear regression model: trunk inclination classifications as predictive variables associated with RCC in the total sample (n = 40) for the three tasks of felling, delimbing, and bucking.

	Felling					Delimbing					Bucking
Trunk Inclination	B	β	CI95%	p	R2	B	β	CI95%	p	R2	B	β	CI95%	p	R2
0°–30°	0.674	0.342	0.121–1.228	0.01	0.145	0.702	0.452	0.307–1.097	0.01	0.265	0.700	0.244	0.206–1.194	0.01	0.186
31°–60°	1.230	0.351	0.265–2.195	0.01	0.156	1.194	0.409	0.34–2.048	0.01	0.183	1.71	0.512	0.672–2.74	0.01	0.237
>60°	0.972	0.345	0.187–1.758	0.01	0.149	0.775	0.114	−1.209–2.76	0.43	0.017	0.206	0.062	−0.84–1.25	0.69	0.004

B = unstandardized regression coefficients; β = standardized regression coefficients; CI95% = confidence interval at 95%.