Table 1.

Summary of the changes in average standard score and average IQR (represented as χ-bar) after brightfield image PIXI analysis normalization.

	Initial OCR		Basal OCR		Basal GR
	standard score ($\overline{\chi }$)	IQR ($\overline{\chi }$)	standard score ($\overline{\chi }$)	IQR ($\overline{\chi }$)	standard score ($\overline{\chi }$)	IQR ($\overline{\chi }$)
Before normalization	0.694	1.520	0.684	1.435	0.675	1.499
After PIXI normalization	0.663	1.322	0.654	1.297	0.668	1.382
Effect of normalization	− 0.030	− 0.199	− 0.030	− 0.138	− 0.007	− 0.116