Table 2.
Baseline Demographics, Female Patients Greater Than Fifteen Years of Age
| No RAI (n=8967) | Yes RAI (n=9883) | p Value | |
|---|---|---|---|
| Age (years), mean±SD | 48.5±15.6 | 45.5±15.0 | <0.0001a |
| Tumor size, N | <0.0001b | ||
| 0–9 mm | 3552 (42.4%) | 1580 (16.7%) | |
| 10–19 mm | 2078 (24.8%) | 3261 (34.4%) | |
| 20–39 mm | 1955 (23.3%) | 3491 (36.8%) | |
| 40+ mm | 790 (9.4%) | 1159 (12.2%) | |
| Stage, n (%) | <0.0001b | ||
| Local | 7087 (79.0%) | 5853 (59.2%) | |
| Regional | 1609 (17.9%) | 3590 (36.3%) | |
| Remote | 271 (3.0%) | 440 (4.5%) | |
| Charlson comorbidity score excluding tumor, mean±SD | 0.44±1.03 | 0.34±0.82 | 0.0003c |
| Yost (14) SES quintiles | <0.0001b | ||
| 1st quintile (lowest) | 1321 (14.7%) | 1178 (11.9%) | |
| 2nd quintile | 1551 (17.3%) | 1685 (17.1%) | |
| 3rd quintile | 1837 (20.5%) | 2087 (21.1%) | |
| 4th quintile | 1980 (22.1%) | 2391 (24.2%) | |
| 5th quintile (highest) | 2278 (25.4%) | 2542 (25.7%) | |
| Marital status (yes), n (%) | 5355 (59.7%) | 6202 (62.8%) | <0.0001b |
a
t-test
b
χ2 test.
c
Wilcoxon two-sample test
RAI, radioactive iodine; SD, standard deviation; SES, socioeconomic status.