Long-term colony-initiating cell concentrations per 105 bone marrow cells
| Time in culture . | B6 . | BALB . | CXB-12 . | CXB-4 . |
|---|---|---|---|---|
| Experiment 1 | ||||
| 4 weeks | 2.9 (1.9–4.4) | 13.9 (11.1–17.5) | 14.0 (11.2–17.6) | 5.4 (3.9–7.4) |
| 5 weeks | 1.8 (1.0–3.2) | 7.4 (5.6–9.8) | 8.6 (6.6–11.1) | 2.8 (1.8–4.2) |
| Experiment 2 | ||||
| 4 weeks | 1.7 (0.9–2.8) | 15.2 (12.1–18.9) | 16.1 (12.3–21) | 7.7 (5.9–10.1) |
| 5 weeks | 1.0 (0.5–2.1) | 4.8 (3.5–6.6) | 7.0 (5.6–11.3) | 3.3 (2.3–4.9) |
| 6 weeks | 0.7 (0.3–1.7) | 4.1 (2.9–5.7)* | 5.2 (3.4–8.1) | 2.6 (1.7–4.0) |
| Time in culture . | B6 . | BALB . | CXB-12 . | CXB-4 . |
|---|---|---|---|---|
| Experiment 1 | ||||
| 4 weeks | 2.9 (1.9–4.4) | 13.9 (11.1–17.5) | 14.0 (11.2–17.6) | 5.4 (3.9–7.4) |
| 5 weeks | 1.8 (1.0–3.2) | 7.4 (5.6–9.8) | 8.6 (6.6–11.1) | 2.8 (1.8–4.2) |
| Experiment 2 | ||||
| 4 weeks | 1.7 (0.9–2.8) | 15.2 (12.1–18.9) | 16.1 (12.3–21) | 7.7 (5.9–10.1) |
| 5 weeks | 1.0 (0.5–2.1) | 4.8 (3.5–6.6) | 7.0 (5.6–11.3) | 3.3 (2.3–4.9) |
| 6 weeks | 0.7 (0.3–1.7) | 4.1 (2.9–5.7)* | 5.2 (3.4–8.1) | 2.6 (1.7–4.0) |
Data given as mean (95% confidence limits) after limiting-dilution analysis.