San Marino vs Saint Kitts and Nevis: Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus
San Marino
19.89 one-year-olds
in 2023
Saint Kitts and Nevis
22.36 one-year-olds
in 2023
San Marino rank
188th
Saint Kitts and Nevis rank
187th
Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus over time
- San Marino
- Saint Kitts and Nevis
How they compare
Saint Kitts and Nevis currently reports 22.36 one-year-olds against 19.89 one-year-olds in San Marino, a difference of 2.47 one-year-olds.
That makes Saint Kitts and Nevis's figure about 1.1 times San Marino's.
The two have swapped places 6 times across 41 shared years of data; in 1983 it was Saint Kitts and Nevis ahead.
San Marino ranks 188th and Saint Kitts and Nevis ranks 187th of 194 countries.
Across the 5 decades both report, San Marino averaged higher in 3 and Saint Kitts and Nevis in 2.
Head to head by decade
| Decade | San Marino | Saint Kitts and Nevis | Difference | Ahead |
|---|---|---|---|---|
| 1980s | 2.31 one-year-olds | 46.72 one-year-olds | 44.41 one-year-olds | Saint Kitts and Nevis |
| 1990s | 5.44 one-year-olds | 9.4 one-year-olds | 3.97 one-year-olds | Saint Kitts and Nevis |
| 2000s | 17.93 one-year-olds | 12.31 one-year-olds | 5.63 one-year-olds | San Marino |
| 2010s | 37.36 one-year-olds | 17.44 one-year-olds | 19.92 one-year-olds | San Marino |
| 2020s | 22.35 one-year-olds | 18.57 one-year-olds | 3.77 one-year-olds | San Marino |
Averages of every year both report within each decade.
Frequently asked questions
- Which has higher number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus, San Marino or Saint Kitts and Nevis?
- Saint Kitts and Nevis, at 22.36 one-year-olds against 19.89 one-year-olds in San Marino as of 2023.
- What is the difference in number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus between San Marino and Saint Kitts and Nevis?
- 2.47 one-year-olds, with Saint Kitts and Nevis ahead.
- How many years of comparable data are there for San Marino and Saint Kitts and Nevis?
- 41 years are reported by both, from 1983 to 2023.
- How do San Marino and Saint Kitts and Nevis rank globally for number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus?
- San Marino ranks 188th and Saint Kitts and Nevis ranks 187th of 194 countries.
- Where does this data come from?
- WHO & UNICEF (2025); UN, World Population Prospects (2024) – processed by Our World in Data, published as Number of one-year-olds who are not vaccinated against diphtheria, pertussis and tetanus. Statizoid refreshes it automatically from the source and publishes the full history for both places.
Individual pages
About this data
Number of one-year-olds who have not had three doses of the combined diphtheria, tetanus and pertussis vaccine in a given year.