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. 2013 Aug;23(8):1015–1021. doi: 10.1089/thy.2012.0356

Table 3.

Comparison of Papillary and Follicular Thyroid Cancer in SEER's 9-Registry Database (1980–2009)

 
Papillary
Follicular
 
CI
  n Rate SE n Rate SE Pap/FollIRR LL UL
Total 45,942 6.21 0.03 6410 0.88 0.01 7.07 6.91 7.24
Sex
 Female 35,131 9.21 0.05 4563 1.19 0.02 7.77 7.56 7.97
 Male 10,811 3.10 0.03 1847 0.55 0.01 5.63 5.39 5.87
Age in years
 0–9 32 0.03 0.01 2
 10–19 1014 0.94 0.03 119 0.11 0.01 8.55 7.28 10.03
 20–29 5572 4.73 0.06 581 0.49 0.02 9.65 9.03 10.31
 30–39 9878 8.24 0.08 1050 0.88 0.03 9.36 8.90 9.85
 40–49 10,586 10.17 0.10 1244 1.20 0.03 8.48 8.07 8.90
 50–59 8827 11.14 0.12 1144 1.44 0.04 7.74 7.34 8.15
 60–69 5761 10.18 0.13 1027 1.82 0.06 5.59 5.28 5.93
 70–79 3171 8.15 0.14 839 2.16 0.07 3.77 3.53 4.04
 +80 years 1101 4.97 0.15 404 1.83 0.09 2.72 2.44 3.03
Race/ethnicity
 White 38,023 6.41 0.03 5140 0.87 0.01 7.37 7.21 7.53
 Black 2385 3.28 0.07 584 0.85 0.04 3.86 3.53 4.21
 Other 5091 7.32 0.1 619 0.92 0.04 7.96 7.43 8.52
 Unknown 443 67
Registry
 Utah 4112 8.06 0.13 417 0.85 0.04 9.48 8.73 10.30
 New Mexico 3472 7.34 0.13 384 0.82 0.04 8.95 8.18 9.79
 Connecticut 6761 6.68 0.08 887 0.87 0.03 7.68 7.24 8.14
 SF–Oakland 6135 5.14 0.07 820 0.7 0.02 7.34 6.89 7.83
 Seattle 6975 6.31 0.08 938 0.87 0.03 7.25 6.82 7.71
 Hawaii 2779 8.16 0.16 395 1.16 0.06 7.03 6.41 7.72
 Iowa 4996 5.92 0.08 819 0.94 0.03 6.30 5.92 6.70
 Atlanta 3946 5.38 0.09 620 0.9 0.04 5.98 5.53 6.46
 Detroit 6766 5.75 0.07 1130 0.97 0.03 5.93 5.61 6.27
SEER stage
 Localized 28,482 3.86 0.02 3348 0.46 0.01 8.39 8.16 8.62
 Regional 14,939 2.00 0.02 2435 0.33 0.01 6.06 5.78 6.35
 Distant 1598 0.22 0.01 428 0.06 0.00 3.67 3.13 4.30
 Other/Unknown 923 0.12 0.00 199 0.03 0.00 4.29 4.03 4.56
Tumor size (1988–2009)
 0–1 cm 13,887 2.43 0.02 296 0.05 0.00 48.60 45.59 51.81
 >1 but ≤2 cm 10,883 1.89 0.02 835 0.15 0.01 12.60 11.82 13.43
 >2 but ≤4 cm 8618 1.49 0.02 1839 0.32 0.01 4.66 4.40 4.93
 +4 cm 6636 1.16 0.01 2087 0.37 0.01 3.14 3.01 3.26
 Other/unknown 5918 1353

Rates are per 100,000 person years (age-adjusted to the 2000 U.S. standard population). For tumor size, the time period is limited to 1988–2009.