Table 3.

IR band intensity ratios of pattern A spectra in normal, dysplastic, and malignant cervical smears

Pattern	Ratio
	1,080 cm−1/AmII	1,026 cm−1/AmI	1,026 cm−1/AmII	1,080 cm−1/AmI	AmII/AmI
Normal (n = 10)
A	1.13  ±  0.038	0.79  ±  0.007	1.77  ±  0.129	ND	0.51  ±  0.002
B	0.15  ±  0.012	ND	ND	0.09  ±  0.006	0.57  ±  0.027
Dysplasia (n = 7)
A	0.76  ±  0.015	0.59  ±  0.010	1.17  ±  0.045	ND	0.54  ±  0.002
B	0.14  ±  0.012	ND	ND	0.085  ±  0.009	0.60  ±  0.045
Cancer (n = 5)
A	0.51  ±  0.016	0.43  ±  0.014	0.77  ±  0.050	ND	0.58  ±  0.001
B	0.11  ±  0.010	ND	ND	0.07  ±  0.003	0.59  ±  0.031

In each cervical sample the mean ± SD of the intensity ratios of all spectra of pattern A or B was determined. For each group, the mean ± SD of the individual means was calculated; these values were compared between groups (t-test). In all comparisons of cell types (normal vs. dysplasia, normal vs. cancer, and dysplasia vs. cancer), significant (P < 0.01) differences were seen in ratios 1,080 cm⁻¹/AmII, 1,026 cm⁻¹/AmI, and 1,026 cm⁻¹/AmII (for pattern A) and in ratios 1,080 cm⁻¹/AmII and 1,080 cm⁻¹/AmI (for pattern B). AmII, amide II; AmI, amide I; ND, not determined.