Table II.

Table comparing elbow range of motion in chronic and acute instability patients at the time of the retrospective review.

	Chronic instability	Acute instability	Chronic vs. acute
	Mean (SE); 95% CI	Mean (SE); 95% CI	Mean difference (SE); P value∗
Flexion	143.2 (2.3); 138.5, 147.9	123.6 (3.1); 117.2, 130.0	19.6 (3.9); <.0001†
Extension	2.7 (2.8); 3.0, 8.4	24.2 (3.8); 10.9, 37.4	−21.4 (4.7); <.0001†
Pronation	75.0 (0); 72.3, 77.7	69.7 (1.8); 66.0, 73.3	5.3 (2.2); .02†
Supination	80.0 (2.5); 74.9, 85.1	63.4 (3.4); 56.5, 70.3	−16.6 (4.2); .0004†

SE, standard error; CI, confidence interval.

^∗P value from Kruskal-Wallis test.

^†Statistically significant.