Medical statistics
Analyses of published aggregate medical data. 64 articles
[M064] Of the 14.12-Fold Rise in Deaths from Alzheimer's Disease from 2005 to 2024, the Age Composition Accounts for 1.93-Fold and the Age-Specific Rates for 6.65-Fold
Using the condensed list of causes of death in the Vital Statistics (yearly for 1995–2024, and by 5-year age g…
[M063] Rates of Open Reduction of Fracture Peak at Different Ages by Site
Claim counts of operations in the 10th NDB Open Data (fiscal 2023, inpatient) were divided by the population o…
[M062] The Population Aged 100–104 Grew 3.06-Fold from 2005 to 2020, but Births 100–104 Years Earlier Grew Only 1.246-Fold
The census population aged 100–104, 95–99, and 90–94 (2005–2020) was divided by the births in the 5 years when…
[M061] The "Unhealthy Years" Within Life Expectancy at 65 Differ About Threefold with What Counts as Healthy
Life expectancy at 65 and 75 from the 2024 abridged life table was divided by the Sullivan method into healthy…
[M060] The Share of Co-resident Family Caregivers Aged 65+ Is 0.836 When the Person Receiving Care Is 70–74, Falls to 0.473 at 85–89, and Returns to 0.594 at 90+
Using the 2025 Comprehensive Survey of Living Conditions (long-term care questionnaire), when the main caregiv…
[M059] The Leading Main Cause for Needing Care Is Dementia (16,743 per 100,000), but Choosing All That Apply It Is Frailty Due to Old Age (26,100)
Using the 2025 Comprehensive Survey of Living Conditions (long-term care questionnaire), the causes for needin…
[M058] The Share Certified as Needing Care Doubles Every 4.26–4.97 Years at Ages 65–84, Faster Than the Death Rate at the Same Ages (5.87–7.90 Years)
The number certified as needing long-term care or support in the Survey of Long-term Care Benefit Expenditures…
[M057] The Share of Deaths in Hospital Peaked at 0.7975 in 2005 and Fell to 0.6439 by 2024, and 0.916 of That Fall Was Movement Within the Same Age
Using the place of death in the Vital Statistics (1951–2024) and the tables of age (5-year groups) × place of…
[M056] The Age at Which Senility Becomes the Leading Cause of Death Rose from 80–84 in 1950 to 100+ in 1990–2010 and Came Down to 90–94 in 2021
Using the 2024 ranking of causes of death in the Vital Statistics (by sex and 5-year age) and the cause-of-dea…
[M055] Of the 7.85-Fold Rise in Deaths from Senility from 2005 to 2024, the Age Composition Accounts for 2.51-Fold and the Age-Specific Rates for 3.25-Fold
Using the cause-of-death list for trends in the Vital Statistics (1950–2024, 5-year age groups), the rise in d…
[M054] Liver Deaths Fall into Three Chapters of the Cause-of-Death List, and the "Liver Disease" Chapter Holds Only 0.441 of the 42,771 in 2024
Using the condensed cause-of-death list of the Vital Statistics (2024, final figures), deaths related to the l…
[M053] From 2013 to 2023 the Share of Men Aged 20–29 Who Smoke Now Fell 15.8 Points at the Same Age but 6.5 Points Following the Same Birth Years
Using the "smoking status" tables of the National Health and Nutrition Survey for 2013 and 2023 (the same 4 an…
[M052] Women's Checkup Values Change Most at the Step from Ages 45–49 to 50–54
For 16 items of the Specific Health Checkups (fiscal 2022), the national means by 5-year age group from 40 to…
[M051] The Share Underweight Among Women Aged 20–29 Shows No Clear Trend over 18 Years (2004–2023), and Its Year-to-Year Swings Are Explained by Small Numbers
The share underweight (BMI below 18.5) in the National Health and Nutrition Survey was lined up by sex and 6 a…
[M050] The Share with Obesity Rose in All 6 Age Groups for Men, While Women's Age-Adjusted Share Is Flat at −0.09 Points
The share with obesity (BMI 25 or above) in the National Health and Nutrition Survey was lined up by sex and 6…
[M049] Of the Movement in Means at Ages 20+, the Part Due to Respondents' Age Composition Differs in Direction and Size by Indicator
For 2013 and 2023 of the National Health and Nutrition Survey, the differences in the means at ages 20+ (by se…
[M048] The Mean and Median of Salt Intake Move Side by Side, Always 0.31–0.57 g Apart, Across 10 Surveys, Yet Only in the 2024 Table Is the Standard Deviation 0.732 Times the Previous Year
For 10 rounds of the National Health and Nutrition Survey (2013–2019 and 2022–2024), the mean, median, and sta…
[M047] People with eGFR Below 60 Increase 9.08-Fold in Men from Ages 40–44 to 70–74, but the Equation Contains Age
This paper checks how much the number of people below a single line of 60 on eGFR in the Specific Health Check…
[M046] The Mean HbA1c Rises Only 0.426 from Ages 40–44 to 70–74, Yet People at 6.5 or Above Increase 5.11-Fold
This paper checks whether the distribution of HbA1c in the Specific Health Checkups (fiscal 2022) only shifts…
[M045] The Number of "People with Diabetes" Changes by Orders of Magnitude with What Is Counted
This paper sets side by side six numbers from four surveys that are all counted under the one phrase "people w…
[M044] COPD Death Rates Line Up by Birth Year for Men but Hardly for Women
This paper checks whether the age × year shape of death rates from COPD (chronic obstructive pulmonary disease…
[M043] Asthma Counted at School Rose 2.35–3.91-Fold from 1990 to 2014–2024, While the Asthma Death Rate at Ages 5–19 Fell to 0.019 Times over the Same Span
This paper checks whether asthma among children counted in the School Health Statistics Survey (prevalence of…
[M042] Asthma Death Rates Fell to 0.066–0.162 Times at Every Age from 1995 to 2016
This paper checks at which ages the fall in asthma deaths occurred, using Table 5.15 of the Vital Statistics (…
[M041] The Fall in Pneumonia Deaths in 2017 Is Nearly Predicted by the Ratio from Recoding the Same Death Records under the New and Old Classifications
In 2017, pneumonia deaths fell from 119,346 in 2016 to 96,859. This paper checks how much of this fall is acco…