. 2021 Nov 8;11:21879. doi: 10.1038/s41598-021-01305-3

Table 2.

Dosimetry comparison for the OAR of RP group and NP group (mean ± SD) (cGy).

OAR		n	RP group	NP group	t	P
Ipsilateral lung	V_20Gy	50	19.56 ± 2.4	22.1 ± 2.06	− 6.15	0.00^b
	V_10Gy	50	31.01 ± 3.06	32.16 ± 2.84	− 4.20	0.00^b
	V_5Gy	50	45.83 ± 4.56	44.9 ± 3.48	2.38	0.02^a
	D_mean	50	10.68 ± 1.09	11.45 ± 1.02	− 6.14	0.00^b
Heart	D_mean	50	4.95 ± 1.72	5.38 ± 1.88	− 3.68	0.01^a
Breast-R	D_mean	50	11.19 ± 7.17	17.27 ± 12	− 4.79	0.00^b
Spinal cord	D_max	50	13.62 ± 3.16	22.67 ± 5.7	− 6.02	0.00^b
shoulder joint-L	D_mean	50	7.93 ± 2.2	12.38 ± 2.53	− 15.34	0.00^a
shoulder joint-L	D_max	50	20.06 ± 7.84	32.63 ± 7.74	− 13.71	0.00^a
Thyroid	D_mean	50	15.25 ± 4.82	14.6 ± 4.93	− 1.38	0.17^b
Thyroid	D_max	50	47.26 ± 8.9	45.47 ± 7.89	− 3.66	0.00^b
Trachea	D_mean	50	6.79 ± 2.04	7.51 ± 3.25	− 2.48	0.02^a
Trachea	D_max	50	19.83 ± 8.46	22.85 ± 10.11	− 4.02	0.00^a
Esophagus	D_mean	50	3.94 ± 1.88	4.3 ± 2.55	− 1.68	0.01^b
Esophagus	D_max	50	28.89 ± 12.76	30.78 ± 12.41	− 2.06	0.05^a
Intestines	D_mean	50	7.59 ± 5.85	12.46 ± 10.89	− 4.53	0.00^b
Intestines	D_max	50	32.58 ± 19.06	36.84 ± 18.78	− 2.15	0.03^b

*a = Paired t test, *b = Nonparametric Wilcoxon test, P < 0.05.

Bold values indicates that the difference is statistically significant (P<0.05)