Table 2.
The location of IR spectroscopic peaks of normal, dysplastic, and malignant cervical samples
| Peak location, cm−1 (mean ± SD)
| |||||
|---|---|---|---|---|---|
| Normal (n = 10)
|
Dysplasia (n = 7)
|
Cancer (n = 5)
|
|||
| Pattern A | Pattern B | Pattern A | Pattern B | Pattern A | Pattern B |
| 1027.20 ± 0.84 | —* | 1027.50 ± 0.83 | —* | 1026.7 ± 0.61 | —* |
| 1080.43 ± 0.34 | 1079.16 ± 2.60 | 1079.40 ± 2.47 | 1078.1 ± 4.5 | 1080.6 ± 0.01 | 1078.60 ± 2.5 |
| 1105.75 ± 2.11† | 1114.41 ± 4.53† | 1102.5 ± 3.96† | 1112.8 ± 6.0† | 1102.3 ± 2.9† | 1118.4 ± 5.5† |
| 1153.38 ± 0.71 | 1171.70 ± 6.43 | 1153.83 ± 1.59 | 1173.9 ± 9.3 | 1154.10 ± 0.20 | 1173.8 ± 5.6 |
| 1242.25 ± 4.22 | 1241.63 ± 3.23 | 1243.43 ± 3.35 | 1242.4 ± 3.92 | 1242.05 ± 2.51 | 1241.63 ± 3.23 |
| 1544.01 ± 1.68 | 1544.51 ± 1.56 | 1544.00 ± 1.59 | 1545.2 ± 2.4 | 1544.9 ± 1.61 | 1545.2 ± 1.8 |
| 1652.38 ± 0.48 | 1653.58 ± 2.7 | 1652.1 ± 0.34 | 1653.58 ± 2.7 | 1652.1 ± 0.39 | 1653.4 ± 2.0 |
Values represent the mean ± SD of the values of each sample, obtained as in Methods. Statistically significant (P < 0.001, t-test) are the shifts of peaks at 1,105 cm−1 and 1,153 cm−1 in pattern A to higher wavenumbers in pattern B of all groups. *, peak not apparent; †, approximately 1/3 of the spectra showed this peak clearly.