TABLE 2.

Preoperative radiation dose delivered to the stomach and gastric substructures of all (n = 89) patients

	Anastomotic complication		p‐value
	Yes	No
	n = 53 (59.6%)	n = 36 (40.4%)
	Median (IQR)	Median (IQR)
Entire stomach
Mean dose (Gy)	27.24 (15.71–34.24)	27.42 (21.00–34.75)	0.88
Maximum dose (Gy)	48.21 (47.28–51.12)	49.23 (47.39–53.54)	0.21
Minimum dose (Gy)	3.21 (0.74–8.86)	2.31 (0.80–6.29)	0.54
V20 (%)	68 (31–91)	63 (44–89)	0.81
V30 (%)	40 (12–57)	38 (25–61)	0.66
Fundus
Mean dose (Gy)	36.17 (22.21–44.45)	36.23 (28.23–45.07)	0.36
Maximum dose (Gy)	47.56 (46.41–49.15)	48.22 (46.69–53.20)	0.15
Minimum dose (Gy)	14.75 (5.83–21.93)	16.77 (7.10–28.61)	0.33
V20 (%)	98 (49–100)	98 (67–100)	0.35
V30 (%)	66 (13–93)	71 (41–100)	0.23
Greater curvature
Mean dose (Gy)	23.34 (10.53–32.20)	24.07 (16.33–33.88)	0.88
Maximum dose (Gy)	47.63 (45.87–49.71)	48.44 (46.31–52.96)	0.17
Minimum dose (Gy)	3.54 (0.66–10.28)	2.48 (0.93–8.73)	0.61
V20 (%)	61 (13–89)	54 (33–87)	0.88
V30 (%)	28 (1–52)	25 (12–61)	0.70
Lesser curvature
Mean dose (Gy)	35.80 (25.42–40.96)	36.28 (30.11–42.57)	0.47
Maximum dose (Gy)	48.11 (47.22–50.03)	49.10 (47.02–53.51)	0.21
Minimum dose (Gy)	9.97 (1.33–16.57)	6.25 (1.57–21.13)	0.97
V20 (%)	90 (59–99)	84 (69–100)	0.85
V30 (%)	62 (37–82)	63 (45–95)	0.49
Pylorus/antrum
Mean dose (Gy)	16.94 (2.02–26.82)	12.43 (1.92–29.97)	0.82
Maximum dose (Gy)	36.37 (4.42–46.25)	31.87 (4.87–44.21)	0.73
Minimum dose (Gy)	4.86 (0.94–12.43)	2.90 (0.99–10.89)	0.71
V20 (%)	31 (0–83)	9.5 (0–98)	0.95
V30 (%)	1 (0–34)	0 (0–49)	0.80

Abbreviations: Gy, Gray; IQR, interquartile range; V20, the percent volume of the structure receiving at least 20 Gy; V30, the percent volume of the structure receiving at least 30 Gy.