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. 2003 Jul;5(4):308–318. doi: 10.1016/S1476-5586(03)80024-6

Table 1.

Comparison of pO₂ Data in Individual R3327 Dunning Prostate Rat Tumors.

Tumor Subline	Size	Number	Baseline (21% O₂)				Oxygen Challenge (100% O₂)
			pO₂ (Torr)		Hypoxic Fractions (%)		pO₂ (Torr)		Hypoxic Fractions (%)
			Mean±SE	Median	HF₅	HF₁₀	Mean±SE	Median	HF₅	HF₁₀

H	Small	6	33.8±4.4	30.1±4.4	9±2	16±2	137.2±22.9^*	121.1±21.2^*	1±1^*	3±1^*
	Large	6	12.7±1.1^†	11.4±1.6^†	31±4^†	46±5^†	83.1±16.2^*	68.5±20.0^*	7±3^*	10±4^*
AT1	Small	7	10.4±2.1^‡	7.9±2.3^‡	42±7^‡	61±7^‡	62.4±13.1^*,^‡	55.4±21.0^‡	19±7^*,^‡	24±9^*,^‡
	Large	6	3.5±1.2^†,^‡	2.1±1.0^†,^‡	65±5^†,^‡	83±3^†,^‡	40.6±20.1	23.2±15.5	46±11^‡	59±14^‡

Small: <1.5 cm³; large: >3 cm³; HF_{5 or 10}: hypoxic fraction (< 5 or 10 Torr).

^*

P<.05 from baseline.

^†

P<.05 from the small group.

^‡

P<.05 from the H tumors.