Table 3. Results of DNA and RNA extraction from lung cancer tissue samples (n=447) with an vital tumor cell content equal to or larger than 50% using standardized nucleic acid extraction protocols.
| Mean | SD | Median | Min | Max | |
|---|---|---|---|---|---|
| DNA | |||||
| OD 260/280 | 1.9 | 0.02 | 1.9 | 1.85 | 2.07 |
| Amount (µg) | 105.6 | 19.12 | 106.9 | 44.6 | 203.3 |
| Total RNA | |||||
| RIN | 9.3 | 0.67 | 9.5 | 4.7 | 10 |
| Amount (µg) | 52.9 | 25.2 | 49.5 | 2.4 | 138.1 |
| Tumor cell content (%) |
57.8 | 7.8 | 55 | 50 | 87.5 |
RIN = RNA integrity number; OD = optical density