Table 1.

Net intensity of elements determined by energy-dispersive X-ray spectroscopy in a persimmon phytobezoar

	Surface layer	Inner part	P value
C	52.91 ± 13.88	62.30 ± 15.77	0.35
O	22.42 ± 5.95	43.71 ± 14.56	< 0.05
Na	12.77 ± 5.09	21.24 ± 6.26	< 0.05
Al	9.98 ± 2.55	13.01 ± 2.64	0.1
Y	160.62 ± 29.73	209.37 ± 38.48	0.06
S	16.96 ± 3.22	5.27 ± 1.95	< 0.01
Fe	9.88 ± 1.69	2.02 ± 1.17	< 0.01
Os	45.02 ± 3.96	60.35 ± 6.26	< 0.01

For comparisons, statistical analyses were performed by t tests. C: Carbon; O: Oxygen; Na: Sodium; Al: Aluminum; Y: Yttrium; S: Sulfur; Fe: Iron; Os: Osmium.