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Beyond Incidence and Mortality: Socioeconomic Mediation of Gastric Cancer Disparities in the United States, 1990–2021 Cover

Beyond Incidence and Mortality: Socioeconomic Mediation of Gastric Cancer Disparities in the United States, 1990–2021

Open Access
|Feb 2026

Figures & Tables

Table 1

State‑level incidence, deaths and DALYs of gastric cancer (1990–2021).

Incidence (95% UI)Deaths (95% UI)DALYs (95% UI)
19902021Percentage change, 1990–202119902021Percentage change, 1990–202119902021Percentage change, 1990–2021
United States of America
Absolute number, thousands25.71 [24.11–26.59]28.46 [26.39–29.87]10.69% [7.15% to 14.23%]17.32 [16.09–17.98]16.44 [15.03–17.35]−5.22% [−8.10% to −2.28%]383.16 [366.57–393.93]363.14 [342.10–377.92]−5.22% [−8.10% to −2.28%]
Age‑standardized rate, per 100,0008.04 [7.57–8.30]5.07 [4.74–5.30]−36.97% [−38.82% to −35.11%]5.36 [4.99–5.55]2.84 [2.62–2.98]−44.63% [−46.23% to −43.02%]124.90 [120.01–128.28]69.16 [65.84–71.77]−44.63% [−46.23% to −43.02%]
Incidence (95% UI)Deaths (95% UI)DALYs (95% UI)
Top five states, age‑standardized rate, 2021
Hawaii7.88Hawaii4.31Hawaii106.00
Louisiana6.70Mississippi3.92Mississippi98.88
Mississippi6.05Louisiana3.69Louisiana92.79
New Mexico6.02District of Columbia3.66New Mexico92.65
Alaska6.01Alabama3.57District of Columbia91.58
Bottom five states, age‑standardized rate, 2021
Idaho3.82Vermont2.16Idaho49.93
Vermont3.96Iowa2.17Vermont51.09
Utah4.03Idaho2.19Iowa51.52
Iowa4.10Oregon2.20Utah51.56
Oregon4.17Washington2.24Washington52.68

[i] DALYs: disability‑adjusted life years.

[ii] See Table 1 for a summary; full state‑level results with 95% UIs are provided in Supplementary Table S1.

aogh-92-1-5015-g1.png
Figure 1

Age‑standardized (A) incidence, (B) death, and (C) DALY rate of GC in the United States, 2021.

DALYs = Disability‑adjusted life years.

aogh-92-1-5015-g2.png
Figure 2

Correlation between SDI and age‑standardized DALY rates of gastric cancer in the United States by state, 2021.

DALYs = Disability‑adjusted life years.

Ribbon indicates 95% confidence interval.

Table 2

Multiple regression between incidence, deaths, DALYs, prevalence, YLDs, and YLLs count of gastric cancer and racial/ethnic population, 2021, United States.

MEASUREHISPANICWHITEBLACKASIAN
β (95% CI)P‑VALUEβ (95% CI)P‑VALUEβ (95% CI)P‑VALUEβ (95% CI)P‑VALUE
Incidence0.053 [0.039, 0.067]<0.0010.084 [0.074, 0.094]<0.0010.128 [0.099, 0.158]<0.0010.220 [0.178, 0.262]<0.001
Deaths0.032 [0.023, 0.041]<0.0010.049 [0.043, 0.056]<0.0010.068 [0.049, 0.087]<0.0010.122 [0.095, 0.150]<0.001
DALYs0.925 [0.745, 1.106]<0.0010.965 [0.838, 1.092]<0.0011.705 [1.324, 2.087]<0.0012.568 [2.027, 3.109]<0.001
Prevalence0.145 [0.102, 0.187]<0.0010.219 [0.189, 0.249]<0.0010.330 [0.240, 0.420]<0.0010.628 [0.500, 0.755]<0.001
YLDs0.017 [0.013, 0.022]<0.0010.026 [0.023, 0.029]<0.0010.038 [0.029, 0.048]<0.0010.065 [0.052, 0.078]<0.001
YLLs0.908 [0.730, 1.085]<0.0010.939 [0.814, 1.065]<0.0011.667 [1.292, 2.042]<0.0012.503 [1.971, 3.035]<0.001
Table 3

Multiple regression between DALYs of gastric cancer and race/ethnicity and mediation analysis with aggregate household income and educational attainment.

MODELVARIABLEHISPANICWHITEBLACKASIAN
β (95% CI)P‑VALUEβ (95% CI)P‑VALUEβ (95% CI)P‑VALUEβ (95% CI)P‑VALUE
Multiple regressionRacial/ethnic population1.293 [1.003, 1.584]<0.0011.542 [1.150, 1.934]<0.0011.901 [1.479, 2.323]<0.0014.616 [3.200, 6.032]<0.001
Aggregate household incomeβ (95% CI) = −34.419 [−60.265, −8.572] p‑value = 0.010
Education attainmentβ (95% CI) = 3.097 [0.106, 6.087] p‑value = 0.043
Mediation analysisTotal effect0.925 [0.723, 1.502]<0.0010.965 [0.777, 1.098]<0.0011.705 [1.327, 2.542]<0.0012.568 [−0.062, 3.142]0.003
Direct association1.293 [0.926, 1.987]<0.0011.542 [1.028, 1.938]<0.0011.901 [1.377, 2.790]<0.0014.616 [0.453, 6.096]<0.001
Indirect association (combined)−0.368 [−0.754, 0.014]0.041−0.577 [−0.989, −0.023]0.013−0.196 [−0.590, 0.192]0.297−2.048 [−3.887, 0.087]0.034
Indirect association (income)−0.802 [−1.425, 0.365]0.067−1.368 [−2.349, 0.401]0.052−1.002 [−2.083, 0.213]0.084−4.074 [−8.691, 1.814]0.121
Indirect association (education)0.434 [−0.515, 0.869]0.2150.791 [−0.599, 1.544]0.1520.807 [−0.430, 1.861]0.1672.026 [−2.596, 6.124]0.32
Proportion mediated* (%)22.16827.2239.33630.731

[i] *To address the opposing signs between indirect and direct effects, we calculated the proportion mediated using the absolute values of the effects.

DOI: https://doi.org/10.5334/aogh.5015 | Journal eISSN: 2214-9996
Language: English
Submitted on: Oct 17, 2025
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Accepted on: Jan 18, 2026
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Published on: Feb 4, 2026
Published by: Ubiquity Press
In partnership with: Paradigm Publishing Services
Publication frequency: 1 issue per year

© 2026 Yun Seo Kim, Sarah Soyeon Oh, Sung Hwi Hong, Minseo Kim, Dong Keon Yon, Jae Il Shin, Chul S. Hyun, published by Ubiquity Press
This work is licensed under the Creative Commons Attribution 4.0 License.