. Author manuscript; available in PMC: 2018 Dec 14.

Published in final edited form as: Front Womens Health. 2018 May 31;3(2):10.15761/FWH.1000144. doi: 10.15761/FWH.1000144

Table 4.

Relative Risk of Arm Activities and Lymphedema Among Subjects Diagnosed with Breast Cancer in Iowa, 2004, Restricted to Women Who Reported no Change in Arm Activity Level Before and After Breast Cancer Diagnosis

	Lymphedema		Crude		Adjusted
Arm activities	Yes	No	RR	CI	RR	CI
Above the shoulders: ^*
High	9 (20)	35 (13.3)	Ref		Ref ^†
Medium	14 (31.1)	113 (43)	0.48	0.19, 1.21	0.51	0.19, 1.40
Low	22 (48.9)	115 (43.7)	0.74	0.31, 1.76	0.78	0.29, 2.07

Below the shoulders: ^*
High	18 (40)	126 (47.9)	Ref		Ref ^†
Medium	17 (37.8)	92 (35)	1.29	0.63, 2.65	1.38	0.63, 3.01
Low	10 (22.2)	45 (17.1)	1.56	0.67, 3.62	1.59	0.60, 4.24

RR= relative risk; CI = confidence interval.

Only included subjects that reported no change in arm activity level from before breast cancer diagnosis to after resuming household activities (N=308)

^†

Adjusted for BMI, age, axillary dissection, any radiation, and any radiation x axillary dissection