Table 2. Incidence of malignant GCTs of bone (in 5-year intervals), 1975–2004, according to age at diagnosis, gender, race and stage.
Incidence per 10,000,000 persons | |||||||
---|---|---|---|---|---|---|---|
1975–2004 | 1975–79 | 1980–84 | 1985–89 | 1990–94 | 1995–99 | 2000–04 | |
Overall | 1.6 | 2.2 | 1.4 | 2.2 | 2.1 | 1.2 | 1.0 |
Age(years) | |||||||
<20 | 0.6 | 1.6 | -- | 1.0 | 0.3 | 0.3 | 0.3 |
20–44 | 2.4 | 3.2 | 2.3 | 2.9 | 2.2 | 2.2 | 1.6 |
45+ | 1.7 | 1.7 | 1.2 | 2.4 | 3.6 | 0.5 | 1.0 |
p† | <0.01 | ||||||
Gender | |||||||
Male | 1.5 | 2.0 | 1.1 | 2.1 | 1.8 | 1.1 | 1.3 |
Female | 1.7 | 2.4 | 1.6 | 2.4 | 2.4 | 1.2 | 0.7 |
p | 0.53 | ||||||
Race | |||||||
White | 1.5 | 2.4 | 1.4 | 2.1 | 1.9 | 0.9 | 0.9 |
Black | 1.8 | - | - | 3.4 | 2.9 | 0.2 | 1.8 |
Other | 2.5 | 3.2 | 2.6 | 2.6 | 3.5 | 2.2 | 1.3 |
p | 0.17 | ||||||
Stage | |||||||
Localized | 0.5 | 0.8 | 0.3 | 0.9 | 0.5 | 0.5 | 0.3 |
Regional | 0.5 | 0.9 | 0.5 | 0.2 | 0.8 | 0.3 | 0.2 |
Distant | 0.3 | 0.3 | 0.1 | 0.3 | 0.3 | 0.2 | 0.4 |
p 0.04 |
Corresponding p of χ2 test to detect difference in incidence rates for period (1975–2004) between age, gender, race and stage groupings.