Table 3.

Treatment Parameters by Race

Treatment Parameter	White, n=1392	Black, n=97	P *
Relative dose†			.730
Mean±SD	0.89±0.21	0.90±0.19
Median (25th-75th percentile)	0.97 (0.90-1.00)	0.96 (0.89-1.00)
Relative time†			.446
Mean±SD	0.99±0.28	1.02±0.36
Median (25th-75th percentile)	1.01 (1.00-1.06)	1.02 (1.00-1.08)
Relative dose intensity§			.510
Mean±SD	0.91±0.15	0.90±0.12
Median (25th-75th percentile)	0.94 (0.86-0.99)	0.94 (0.86-0.98)
No. of treatment cycles, %			.874
0	0.3	0
1	3.5	3.1
2	2.3	1
3	2.4	3.1
4	1.7	2.1
5	2.7	4.1
6	87.1	86.6

SD indicates standard deviation.

^*The Student t test was used to compare difference between the 2 groups.

^†The ratio of the actual dose to the expected dose of chemotherapy.

^‡The ratio of the actual duration to the expected duration of chemotherapy.

^§The relative dose/relative time.