. 2014 Aug 4;111(31-32):537–544. doi: 10.3238/arztebl.2014.0537

Table 3. Patients' subjective symptoms: operation site pain, arm swelling on treated side, and functional impairments of shoulder and/or arm.

	Operation site pain	Arm swelling on treated side	Impairments of shoulder/arm function
TOTAL (N=730)	34%	17%	35%
Type of surgery Breast-conserving (n=570) Mastectomy (n=160)	35% 30% χ² test: p=0.283	14% 26% χ² test: p<0.001	32% 47% χ² test: p<0.001
Lymph node surgery Sentinel node biopsy (n=397) Axillary dissection (n=313)	31% 35% χ² test: p=0.264	8% 29% χ² test: p<0.001	27% 46% χ² test: p<0.001
Adjuvant chemotherapy Yes (n=362) No (n=367)	38% 29% χ² test: p=0.012	22% 11% χ² test: p<0.001	41% 28% χ² test: p<0.001
Age group <60 years (n=236) 60-70 years (n=252) >70 years (n=242)	44% 30% 27% χ² test: p<0.001	20% 15% 16% χ² test: p=0.297	45% 33% 27% χ² test: p<0.001