Connecticut COVID-19 Vaccination Coverage by Town and Age Group

data.ct.gov provides a table showing the number and percentage of Connecticut residents who have initiated COVID-19 vaccination, are fully vaccinated, and have received an additional dose, broken down by town and age group. The dataset is archived and was not updated after February 16, 2023. Population denominators for coverage estimates are based on 2014 census data.

Use Cases

• Analyze disparities in `Initiated Vaccination Percent` and `Fully Vaccinated Percent` across different `Town` and `Age Group` combinations.
• Model the relationship between socioeconomic vulnerability, indicated by the `At least one census tract SVI≥0.75` flag, and `Additional Dose 1 Received Percent`.
• Track the progression of vaccination stages over time using the `Date Updated` field for longitudinal studies.
• Estimate vaccine coverage for specific age cohorts by combining `Age Group` data with `Population` denominators.

Strengths

• Includes three key vaccination metrics (initiated, fully vaccinated, additional dose) for detailed analysis.
• Provides demographic granularity with breakdowns for `Town` and `Age Group`.
• Documents specific data linkage issues that may affect accuracy, allowing for informed interpretation.

Limitations

• Dataset is archived and not updated, missing recent booster coverage data.
• Uses outdated 2014 census estimates for `Population` denominators, which may not reflect current demographics.
• Coverage percentages may be over- or under-estimated due to record linkage errors as described in the notes.

Provenance

Source

data.ct.gov, likely the Connecticut Department of Public Health.

Collection Method

Vaccine administration records geocoded to town of residence, with out-of-state residents excluded.

Time Range

Covers the period of initial COVID-19 vaccination rollout up to early 2023.

Freshness

Archived; last updated August 2, 2023, with no updates after February 16, 2023.

Geography

Connecticut, USA, at the town level.