Table 2.

The Number of Points Inside and Outside the Abnormal Regions in SWAF and NIRAF

	Inside NIRAF	Outside NIRAF	Total
Inside SWAF	162	38	200
Outside SWAF	201	959	1160
Total	363	997	1360

There was a significant relationship between the number of points within/outside the abnormal SWAF and NIRAF regions (P < 0.0001, χ² test).

SWAF, short-wavelength autofluorescence imaging; NIRAF, near-infrared autofluorescence imaging.