Background Obesity is a global epidemic. The prevalence of obesity has significantly increased in recent decades and is expected to impact a large portion of the US population. Hypertension continues to be one of the most common complications associated with obesity, and the overlap between these two conditions has been growing over time. However, mortality trends in patients with obesity and hypertension have not been investigated in the literature. Objectives This study aimed to investigate mortality trends, stratified by sex, race, age groups, and geographic distribution, in the US population between 1999 and 2020. Methods Death certificates from the Centers for Disease Control and Prevention Wide-Ranging Online Data for Epidemiologic Research (CDC WONDER) were examined and analyzed between 1999 and 2020 for patients with obesity and hypertension as the contributing causes of death. The age-adjusted mortality rates (AAMRs) and annual percent changes (APCs) per 100000 people were calculated by sex, race, age group, and geographic region. Results Among individuals aged ≥15, a total of 294854 deaths occurred in individuals with obesity and hypertension between 1999 and 2020. The overall AAMR increased from 1.08 in 1999 to 12.14 in 2020. The AAMR has steadily increased since 1999, with a sudden spike occurring between 2018 and 2020 during the COVID-19 pandemic. This trend has been observed across nearly all variables analyzed in our study. Our results exhibited a 28% increase in mortality related to obesity and hypertension during the early years of the COVID-19 pandemic. During the study period, men had a higher overall AAMR than women (men, 5.92; women, 4.32). Mortality was highest among the 55-74-year-old age group, followed by the 75-plus-year-old, 35-54-year-old, and finally 15-34-year-old age groups, which displayed the lowest AAMR (AAMR: 55-74, 11.76; 75+, 10.83; 35-54, 4.73; and 15-34, 0.54). Among the races, non-Hispanic (NH) Blacks had the highest overall AAMR (9.81), followed by NH American Indians or Alaskan Natives (6.01), NH Whites (4.64), Hispanics (4.08), and NH Asians or Pacific Islanders (1.17). However, NH Whites showed the highest average APC (AAPC) (11.44), indicating a possible future shift in mortality. By geographic region, the Southern United States had the highest AAMR, followed by the Western, Midwestern, and Northeastern regions. Non-metropolitan areas had consistently higher obesity- and hypertension-related AAMRs (5.63 overall) compared to metropolitan areas (4.99 overall). Conclusion In our retrospective analysis of death certificate data from 1999 to 2020, we found that age-adjusted mortality rates among individuals with both obesity and hypertension consistently displayed an increasing trend across all demographic groups. The overall rising AAMRs, compounded by the disproportionately high average annual percent changes among White individuals and those aged 15-34, raise serious concerns for the healthcare system. These findings have significant implications for public health policy. Focused interventions are essential to curb the upward trajectory of mortality in this population, as early intervention can greatly help tackle the dual burden of obesity and hypertension, which are largely preventable.
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