The Impact of Radiation Dose on Preoperative Neoadjuvant Chemoradiotherapy Effects for Patients with Locally Advanced Squamous Cell Esophageal Carcinoma: A Propensity Score-Matched Retrospective Study

Table 3

Comparison results of long-term follow up outcomes between high dose group and low dose group.

	Low dose group (n = 21)	High dose group (n = 21)	χ^2	P
Local recurrence rate, %
Time points at 1-year	4.8%	0	0.000	1.000
Time points at 2-year	23.8%	4.8%	3.111	0.078
Time points at 3-year	47.6%	14.3%	5.459	0.019
Time points at 5-year	66.7%	33.3%	4.667	0.031
Distant metastasis rates, %
Time points at 1-year	4.8%	0	0.000	1.000
Time points at 2-year	14.3%	4.8%	1.105	0.293
Time points at 3-year	38.1%	9.5%	4.725	0.030
Time points at 5-year	52.4%	38.1%	0.865	0.352
Overall survival rate, %
Time points at 1-year	95.2%	100%	0.000	1.000
Time points at 2-year	90.5%	100%	0.525	0.469
Time points at 3-year	76.2%	90.5%	1.543	0.214
Time points at 5-year	28.6%	66.7%	6.109	0.013