Table 3. Cording and loss of optimal arm functionality.

Risk factor is cording, outcome is difficulty in doing the following tasks

	Univariate Analysis		Multivariable Analysis*
Outcome: It is difficult to…	OR (95% CI)	p-value	OR (95% CI)	p-value
Place something on a shelf above my head	2.82 (2.19, 3.63)	<0.001	2.11 (1.60, 2.78)	<0.001
Drive a car for more than 30 minutes	2.75 (1.68, 4.50)	<0.001	2.48 (1.46, 4.24)	<0.001
Pull a tight shirt on over my head	2.89 (2.23, 3.76)	<0.001	2.34 (1.76, 3.11)	<0.001
Unscrew a tight lid on a jar	2.04 (1.59, 2.62)	<0.001	1.72 (1.32, 2.25)	<0.001
Put on a bra that clips in the back	2.06 (1.54, 2.76)	<0.001	1.80 (1.31, 2.46)	<0.001
Carry a 10 lb. grocery bag for 10 minutes	2.04 (1.59, 2.62)	<0.001	1.72 (1.32, 2.25)	<0.001
Sleep on my affected side for more than 10 minutes	2.07 (1.60, 2.67)	<0.001	1.68 (1.27, 2.21)	<0.001
Pull wet clothes out of the washing machine	2.50 (1.87, 3.36)	<0.001	2.15 (1.56, 2.95)	<0.001
Push a heavy piece of furniture	2.07 (1.57, 2.73)	<0.001	1.66 (1.24, 2.23)	<0.001
Dry my back with a towel	2.51 (1.86, 3.39)	<0.001	1.85 (1.33, 2.58)	<0.001
Chop potatoes into small cubes	2.43 (1.58, 3.75)	<0.001	1.99 (1.24, 3.19)	0.004
Push open a heavy door	2.13 (1.65, 2.76)	<0.001	1.76 (1.33, 2.32)	<0.001
Clean a window above shoulder height	2.52 (1.95, 3.25)	<0.001	2.12 (1.61, 2.79)	<0.001
Vacuum, iron, or scrub for more than 5–30 minutes	2.22 (1.71, 2.89)	<0.001	1.81 (1.36, 2.40)	<0.001
Catch a falling object with my affected hand	2.09 (1.45, 3.02)	<0.001	1.68 (1.13, 2.49)	0.011
Carry a 10 lb. bag over my shoulder	1.88 (1.46, 2.41)	<0.001	1.63 (1.25, 2.13)	<0.001
Type on a keyboard for 20 minutes	2.01 (1.41, 2.89)	<0.001	1.72 (1.17, 2.53)	0.006

^*Each outcome was run separately, controlling for ALND, RLNR and type of surgery

Where OR = odds ratio, CI = confidence interval