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. Author manuscript; available in PMC: 2022 Dec 1.
Published in final edited form as: J Surg Oncol. 2021 Sep 9;124(8):1390–1401. doi: 10.1002/jso.26667

Table 3.

Multivariable results for Insurance Status: Pooled effects from two mixed-effects Cox models for long-term survival.

Factor Model 1: HR (95% CI), p-value Model 2: HR (95% CI), p-value
Insurance (vs. Medicare/Medicaid) Overall p=.335 Overall p<.0001
 Private 1.0 (.914,1.13), .792 0.68 (.620,.741), <.0001
 Uninsured 1.2 (.751,1.81), .497 1.0 (.869,1.20), .813
Race (vs. White, non-Hispanic) Overall p=.549 Overall p=.953
 White, Hispanic 0.92 (.816,1.05), .207 0.89 (.786,1.00), .058
 Black, Non-Hispanic 0.89 (.776,1.01), .077 1.1 (.971,1.20), .156
Male gender (vs. female) 1.2 (1.08,1.24), <.0001 1.1 (1.05,1.21), .001
Age (HR multiplies for each year increase) 1.1 (1.041,1.053), <.0001 1.02 (1.013,1.021), <.0001
Year of diagnosis (HR multiplies per year) 1.0 (.985,1.01), .739 1.0 (.984,1.01), .648
Income (vs. <$38K/year) Overall p<.0001 Overall p=.0001
 $38,000-$47,999 0.93 (.835,1.05), .241 0.98 (.875,1.10), .730
 $48,000-$62,999 0.89 (.797,.999), .049 0.95 (.849,1.07), .384
 $63,000+ 0.80 (.718,.902), .0002 0.86 (.767,.968), .012
Miles from hospital (HR multiplies by per 10-mile increment) 0.99 (.991,.998), .006 0.99 (.994,.999), .015
Region (vs. West) Overall p=.018 Overall p=.001
 East 1.1 (1.01,1.26), .033 1.2 (1.05,1.32), .006
 New England 1.0 (.918,1.12), .764 1.1 (.950,1.17), .321
 Pacific/mountain 1.1 (.968,1.24), .150 1.1 (.967,1.24), .150
Population area (vs. Rural) Overall p=.240 Overall p=.749
 Metro 1.1 (.845,1.40), .515 1.1 (.803,1.38), .705
 Metro adjacent 1.2 (.899,1.53), .241 1.1 (.844,1.49), .425
 Not metro adjacent 0.95 (.701,1.28), .730 1.1 (.766,1.44), .754
Charlson/Deyo score (HR multiplies by per unit increase) 1.2 (1.15,1.26), <.0001 1.1 (1.03,1.15), .002
Disease site (vs. Other) Overall p<.0001 Overall p<.0001
 C250 1.6 (1.32,1.89), <.0001 1.3 (1.09,1.53), .003
 C251 1.3 (1.07,1.59), .008 1.1 (.896,1.31), .412
 C252 1.2 (.969,1.40), .105 1.0 (.853,1.20), .887
 C258 1.2 (.985,1.53), .067 1.1 (.859,1.29), .627
 C259 1.6 (1.32,1.92), <.0001 1.2 (1.00,1.43), .046
Tumor type (vs. carcinoid) Overall p<.0001 Overall p<.0001
 Non-secretory 1.2 (.884,1.48), .304 1.3 (1.02,1.68), .037
 Secretory 1.3 (1.17,1.45), <.0001 1.6 (1.38,1.79), <.0001
Tumor grade (vs. well-differentiated) Overall p<.0001 Overall p<.0001
 Poor/Undifferentiated 3.3 (2.88,3.68), <.0001 4.5 (3.97,5.03), <.0001
 Moderately differentiated 1.4 (1.21,1.60), <.0001 1.4 (1.18,1.58), <.0001
 Undetermined 1.6 (1.49,1.79), <.0001 1.9 (1.69,2.03), <.0001
Tumor size ≤39mm (HR multiplies per mm increase) 1.01 (1.002,1.015), .016 1.01 (1.006,1.021), .0007
Tumor >39mm 1.4 (1.15,1.73), .001 1.6 (1.28,1.96), <.0001
 T stage (vs. 0/1) Overall p<.0001 Overall p<.0001
 T2 1.0 (.787,1.25), .956 1.1 (.806,1.37), .719
 T3 1.1 (.893,1.41), .322 1.3 (1.03,1.71), .031
 T4/X 1.7 (1.34,2.03), <.0001 2.1 (1.66,2.64), <.0001
Metastasis 2.6 (2.41,2.85), <.0001 3.2 (2.93,3.48), <.0001
a

Model 1= patients 65 and older (pooled adjusted R2=0.33, pooled AUC=0.76)

b

Model 2= patients <65 (pooled adjusted R2=0.30, pooled AUC=0.80)