Number of one-year-olds who are not vaccinated against diphtheria in Vietnam
Vietnam: Number of one-year-olds who are not vaccinated against diphtheria was 279.24 % change on previous year in 2023. ◆ Volatile
Number of one-year-olds who are not vaccinated against diphtheria in Vietnam, 1984–2023
Source: Statizoid (derived). Measured in % change on previous year.
Analysis
The most recent figure for number of one-year-olds who are not vaccinated against diphtheria in Vietnam is 279.24 % change on previous year, measured in 2023.
That represents a change of up 682.4% on the previous year and up 812.6% over ten years.
Over the whole period, number of one-year-olds who are not vaccinated against diphtheria in Vietnam peaked at 541.42 % change on previous year in 2002 and was at its lowest, -95.95 % change on previous year, in 2003.
That places Vietnam 5th out of 194 countries with data for 2023, putting it in the top 10%.
The series is highly variable year to year, so single readings are best treated with caution.
Number of one-year-olds who are not vaccinated against diphtheria in Vietnam, year by year
| Year | % change on previous year | Change |
|---|---|---|
| 1984 | 1.82 % change on previous year | — |
| 1985 | -37.65 % change on previous year | -2167.5% |
| 1986 | -1.53 % change on previous year | -95.9% |
| 1987 | -13.78 % change on previous year | +798.8% |
| 1988 | -41.53 % change on previous year | +201.5% |
| 1989 | -60.47 % change on previous year | +45.6% |
| 1990 | 1.93 % change on previous year | -103.2% |
| 1991 | 2.61 % change on previous year | +35.3% |
| 1992 | 1.33 % change on previous year | -49.0% |
| 1993 | -25.39 % change on previous year | -2009.3% |
| 1994 | -34.8 % change on previous year | +37.1% |
| 1995 | 12.63 % change on previous year | -136.3% |
| 1996 | -18.45 % change on previous year | -246.0% |
| 1997 | -21.35 % change on previous year | +15.7% |
| 1998 | 13.29 % change on previous year | -162.2% |
| 1999 | 10.53 % change on previous year | -20.8% |
| 2000 | -45.09 % change on previous year | -528.3% |
| 2001 | 0.53 % change on previous year | -101.2% |
| 2002 | 541.42 % change on previous year | +102048.6% |
| 2003 | -95.95 % change on previous year | -117.7% |
| 2004 | 304.65 % change on previous year | -417.5% |
| 2005 | 25.96 % change on previous year | -91.5% |
| 2006 | 19.25 % change on previous year | -25.8% |
| 2007 | 34 % change on previous year | +76.6% |
| 2008 | -8.96 % change on previous year | -126.4% |
| 2009 | -40.63 % change on previous year | +353.4% |
| 2010 | 73.93 % change on previous year | -281.9% |
| 2011 | -29.65 % change on previous year | -140.1% |
| 2012 | -39.18 % change on previous year | +32.2% |
| 2014 | -87.55 % change on previous year | +123.4% |
| 2015 | -37.94 % change on previous year | -56.7% |
| 2016 | 37.56 % change on previous year | -199.0% |
| 2017 | 46.34 % change on previous year | +23.4% |
| 2018 | 301.17 % change on previous year | +549.9% |
| 2019 | -58.05 % change on previous year | -119.3% |
| 2020 | -47.08 % change on previous year | -18.9% |
| 2021 | 185.09 % change on previous year | -493.1% |
| 2022 | -47.94 % change on previous year | -125.9% |
| 2023 | 279.24 % change on previous year | -682.4% |
Vietnam compared with similar countries
- Vietnam's 279.24 % change on previous year is above the median for upper middle income countries, which is -6.86 % change on previous year. (58 countries reporting)
- Vietnam's 279.24 % change on previous year is above the median for East Asia & Pacific, which is -0.6561 % change on previous year. (30 countries reporting)
Biggest year-on-year movements
Years where Number of one-year-olds who are not vaccinated against diphtheria in Vietnam changed far more than this series normally does. A large move can be a real event or a change in how the figure was measured — the source note below says who published it.
| Year | Change | From | To |
|---|---|---|---|
| 2002 | +102048.6% | 0.53 % change on previous year | 541.42 % change on previous year |
| 1985 | -2167.5% | 1.82 % change on previous year | -37.65 % change on previous year |
| 1993 | -2009.3% | 1.33 % change on previous year | -25.39 % change on previous year |
Averages by decade
| Decade | Average | Lowest | Highest | Years |
|---|---|---|---|---|
| 1980s | -25.52 % change on previous year | -60.47 % change on previous year | 1.82 % change on previous year | 6 |
| 1990s | -5.77 % change on previous year | -34.8 % change on previous year | 13.29 % change on previous year | 10 |
| 2000s | 73.52 % change on previous year | -95.95 % change on previous year | 541.42 % change on previous year | 10 |
| 2010s | 22.96 % change on previous year | -87.55 % change on previous year | 301.17 % change on previous year | 9 |
| 2020s | 92.33 % change on previous year | -47.94 % change on previous year | 279.24 % change on previous year | 4 |
Countries ranked near Vietnam
- 2 Saint Vincent and the Grenadines 483.96 % change on previous year compare
- 3 Ghana 402.48 % change on previous year compare
- 4 Eswatini 398.94 % change on previous year compare
- 6 China 257.15 % change on previous year compare
- 7 Sudan 206.51 % change on previous year compare
- 8 Rwanda 202.93 % change on previous year compare
More health data for Vietnam
- Un projection of annual infant deaths, annual growth rate -1.66 % change on previous year (2100)
- Heat deaths vs projected death rates, annual growth rate 0.0536 % change on previous year (2090)
- Estimated changes in temperature-related death rates compared to projected death rates 1,306 deaths per 1,000 people (2090)
- Number of infants who die before age 1 3,132 deaths (2100)
- Neonatal tetanus - number of reported cases, gaps filled 27 (2025)
- Population ages 00-04, female, annual growth rate -2.12 % change on previous year (2025)
- Population ages 00-04, female, per unit of GDP 0 units per US$ of GDP (2025)
- Population ages 00-04, female, per capita 0.0322 units per person (2025)
- Population ages 00-04, male, annual growth rate -2.33 % change on previous year (2025)
- Population ages 00-04, male, per unit of GDP 0 units per US$ of GDP (2025)
Frequently asked questions
- What is number of one-year-olds who are not vaccinated against diphtheria in Vietnam?
- Number of one-year-olds who are not vaccinated against diphtheria in Vietnam was 279.24 % change on previous year in 2023, according to Statizoid (derived).
- What is the highest number of one-year-olds who are not vaccinated against diphtheria recorded in Vietnam?
- The highest recorded value was 541.42 % change on previous year in 2002.
- What is the lowest number of one-year-olds who are not vaccinated against diphtheria recorded in Vietnam?
- The lowest recorded value was -95.95 % change on previous year in 2003.
- How does Vietnam rank for number of one-year-olds who are not vaccinated against diphtheria?
- Vietnam ranks 5th out of 194 countries with data for 2023.
- Is number of one-year-olds who are not vaccinated against diphtheria rising or falling in Vietnam?
- Over the last ten years it is up 812.6%. The long-run trend across the full record is volatile.
- Where does this Vietnam data come from?
- The figures come from Statizoid (derived), published as part of Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, annual growth rate. Statizoid updates them automatically from the source API.
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How this figure is calculated
The year-on-year percentage change in Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.
Computed from
- Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data
Statizoid computes this series; the underlying measurements belong to the publishers named above. The arithmetic is applied to every country and year where both inputs report, and nothing is estimated unless the page says so.
About this data
The year-on-year percentage change in Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Computed from consecutive annual observations; years either side of a gap are skipped rather than bridged.