Table 1.
Patient Demographics 1995–2005
| Country
|
P-value | ||
|---|---|---|---|
| China | United States | ||
| No. of Patients | 958 | 711 | |
| Male | 699 (73%) | 425 (60%) | <.0001* |
| Female | 259 (27%) | 286 (40%) | |
| Age (yr) | <.0001* | ||
| <30 | 10 (1%) | 6 (1%) | |
| 30–75 | 899 (94%) | 518 (73%) | |
| >75 | 49 (5%) | 187 (26%) | |
| Median (Range) | 61 (22 – 87) | 69 (22 – 96) | <.0001‡ |
| BMI (kg/m2) | <.0001* | ||
| <25 | 648 (68%) | 303 (43%) | |
| 25–30 | 231 (24%) | 185 (26%) | |
| >30 | 20 (2%) | 146 (21%) | |
| Unknown | 59 (6%) | 77 (11%) | |
| Median (Range) † | 22.8 (14 – 35.1) | 25.4 (14.1 – 47.6) | <.0001‡ |
| Race | |||
| Caucasian | -- | 538 (76%) | |
| Black | -- | 45 (6%) | |
| Asian | 958 (100%) | 74 (10%) | |
| Hispanic | -- | 53 (7%) | |
| Other | -- | 1 (0%) | |
|
| |||
| Family History | 0.0009* | ||
| No | 766 (80%) | 579 (81%) | |
| Yes | 192 (20%) | 92 (13%) | |
| Unknown | -- | 40 (6%) | |
Statistical tests based on available data
*
Chi-square test used for categorical variables.
‡
Wilcoxon rank sum test used for continuous variables
†
n=899 (China), n=634 (United States)