Proportion of patients younger than 50 years old versus older than 50 years old treated with either conventional or high-dose therapy during different time periods
| Treatment . | Time period, no. (%) . | |||
|---|---|---|---|---|
| 1981 to 1987 . | 1988 to 1992 . | 1993 to 1998 . | 1999 to 2002 . | |
| Younger than 50 y | ||||
| Conventional therapy | 197 (94.2) | 455 (83.9) | 299 (40.6) | 43 (21.3) |
| High-dose therapy | 12 (5.7) | 87 (16.1) | 437 (59.4) | 159 (78.7) |
| 50 y or older | ||||
| Conventional therapy | 1.107 (98.8) | 3.223 (97.4) | 2.003 (60.0) | 438 (40.1) |
| High-dose therapy | 13 (1.2) | 86 (2.6) | 1.336 (36.4) | 654 (59.9) |
| Treatment . | Time period, no. (%) . | |||
|---|---|---|---|---|
| 1981 to 1987 . | 1988 to 1992 . | 1993 to 1998 . | 1999 to 2002 . | |
| Younger than 50 y | ||||
| Conventional therapy | 197 (94.2) | 455 (83.9) | 299 (40.6) | 43 (21.3) |
| High-dose therapy | 12 (5.7) | 87 (16.1) | 437 (59.4) | 159 (78.7) |
| 50 y or older | ||||
| Conventional therapy | 1.107 (98.8) | 3.223 (97.4) | 2.003 (60.0) | 438 (40.1) |
| High-dose therapy | 13 (1.2) | 86 (2.6) | 1.336 (36.4) | 654 (59.9) |
*Chi-square test for equal proportions; all P values were less than .001.