Table 1.

Rates of lymphedema at study timepoints

	Baseline (rate)	1–2 weeks (rate)	6- month Cum Inc	12month Cum Inc	18-month Cum Inc	24-month Cum Inc	36-month Cum Inc
≥10% limb volume increase	---	73/365 (20.0%)	4.6% (3.0% – 7.3%) 370	30.7% (26.4% – 35.8%) 241	45.0% (40.1% – 50.5%) 175	53.9% (48.8% – 59.5%) 126	60.3% (55.0% – 66.2%) 63
≥2-cm circumference increase	---	125/383 (32.6%)	7.7% (5.5% – 10.8%) 372	45.1% (40.4% – 50.3%) 205	58.3% (53.5% – 63.5%) 141	69.8% (65.2% – 74.8%) 90	75.4% (70.8% – 80.2%) 52
Arm heaviness symptom	27/409 (6.6%)	105/427 (24.6%)	1.6% (0.7% – 3.4%) 380	12.0% (9.1% – 15.8%) 316	20.4% (16.6% – 25.0%) 261	22.6% (18.7% – 27.5%) 224	26.0% (21.7% – 31.1%) 130
Arm swelling symptom	13/411 (3.2%)	100/426 (23.5%)	2.1% (1.0% – 4.1%) 379	13.6% (10.5% – 17.6%) 309	23.2% (19.2% – 28.0%) 249	27.8% (23.4% – 32.9%) 203	30.9% (26.3% – 36.3%) 124

Cum Inc: cumulative incidence