Update dataset card (nhsn-hrd)

README.md

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+---
+pretty_name: CDC NHSN Hospital Respiratory Data (HRD)
+license: other
+size_categories:
+- 10K<n<100K
+tags:
+- cadence-weekly
+- geo-us
+- surveillance-respiratory
+- pathogen-influenza
+- pathogen-sars-cov-2
+- pathogen-rsv
+- tier-1
+- availability-open
+schema_version: '0.1'
+source_id: nhsn-hrd
+source_url: https://data.cdc.gov/Public-Health-Surveillance/Weekly-Hospital-Respiratory-Data-HRD-Metrics-by-Ju/ua7e-t2fy/about_data
+manifest_section: §1.1
+surveillance_category: respiratory
+pathogens:
+- influenza
+- sars-cov-2
+- rsv
+availability: open
+availability_notes: null
+access_type: socrata
+tier: 1
+cadence: weekly
+geography_levels:
+- national
+- subnational-region
+- subnational-state
+geography_countries:
+- US
+gold_standard_for:
+- flusight-forecast-hub
+- covid19-forecast-hub
+- rsv-forecast-hub
+vintaged_version_of: null
+succeeds: hhs-protect
+derived_from: []
+value_columns:
+- name: totalconfflunewadm
+  unit: admissions/week
+  value_type: incident
+  description: New laboratory-confirmed influenza hospital admissions (FluSight target)
+  aggregation: sum
+- name: totalconfc19newadm
+  unit: admissions/week
+  value_type: incident
+  description: New laboratory-confirmed COVID-19 hospital admissions
+  aggregation: sum
+- name: totalconfrsvnewadm
+  unit: admissions/week
+  value_type: incident
+  description: New laboratory-confirmed RSV hospital admissions (mandatory reporting from epiweek 2024-46)
+  aggregation: sum
+- name: numinptbeds
+  unit: beds
+  value_type: stock
+  description: Total staffed inpatient beds (capacity denominator) — point-in-time
+  aggregation: mean
+- name: numinptbedsocc
+  unit: beds
+  value_type: stock
+  description: Staffed inpatient beds occupied — point-in-time
+  aggregation: mean
+- name: numicubeds
+  unit: beds
+  value_type: stock
+  description: Total ICU beds — point-in-time
+  aggregation: mean
+- name: numicubedsocc
+  unit: beds
+  value_type: stock
+  description: ICU beds occupied — point-in-time
+  aggregation: mean
+- name: totalconfc19icupats
+  unit: patients
+  value_type: stock
+  description: Confirmed COVID-19 patients in ICU — point-in-time
+  aggregation: mean
+- name: totalconffluicupats
+  unit: patients
+  value_type: stock
+  description: Confirmed influenza patients in ICU — point-in-time
+  aggregation: mean
+- name: totalconfflunewadmper100k
+  unit: admissions/week per 100k population
+  value_type: rate
+  description: Weekly flu admission rate per 100k population
+  aggregation: rate
+- name: totalconfc19newadmper100k
+  unit: admissions/week per 100k population
+  value_type: rate
+  description: Weekly COVID-19 admission rate per 100k population
+  aggregation: rate
+- name: totalconfflunewadmcumulativeseasonalsum
+  unit: admissions
+  value_type: cumulative
+  description: Cumulative flu admissions since start of respiratory season
+  aggregation: max
+- name: totalconfc19newadmcumulativeseasonalsum
+  unit: admissions
+  value_type: cumulative
+  description: Cumulative COVID-19 admissions since start of respiratory season
+  aggregation: max
+- name: totalconfrsvnewadmcumulativeseasonalsum
+  unit: admissions
+  value_type: cumulative
+  description: Cumulative RSV admissions since start of respiratory season
+  aggregation: max
+notes:
+  extra_columns:
+  - column: location_name
+    description: 2-letter postal abbreviation as reported by the source. Kept for traceability; `location_id` is canonical.
+  - column: respseason
+    description: Respiratory season identifier (e.g. '2024-2025'). NHSN-specific; useful for grouping by season but doesn't
+      appear in other sources.
+  interpretation_caveats:
+  - column: numinptbeds
+    caveat: Counts only *staffed* beds (those with available staff to operate). HHS Protect's analogous capacity column had
+      different inclusion criteria; do not naively splice across the 2024-11 boundary.
+  - column: totalconfflunewadm
+    caveat: Counts new admissions where flu was confirmed by lab on or within 14 days of admission. Reporting jurisdictions
+      varied this rule pre-2024-11; treat pre-2024-11 values as approximate.
+  - column: totalconfrsvnewadm
+    caveat: RSV mandatory reporting started epiweek 2024-46; pre-2024-46 values are NaN or sparsely populated by voluntary
+      reporters.
+  - column: '*cumulativeseasonalsum'
+    caveat: 'Cumulative within a respiratory season (resets at season boundary). Use with `value_type: cumulative` discipline
+      — never sum, diff to recover incident.'
+  general: 'NHSN HRD is the FluSight scoring target from the 2024–25 season onward. The feed includes
+
+    backfilled HHS Protect data going back to 2020-08, but the underlying reporting program
+
+    changed in 2024-11 (voluntary → mandatory). For long-term modeling that crosses that boundary,
+
+    treat pre-2024-11 and post-2024-11 as having different observational regimes.
+
+
+    Hospital reporting became voluntary 2024-05-01 to 2024-11-09; mandatory reporting resumed
+
+    under NHSN HRD starting epiweek 2024-46. The voluntary period has reduced coverage.
+
+    '
+extra:
+  case_definition_url: https://www.cdc.gov/nhsn/psc/respiratory-data.html
+  source_columns_omitted: 199 of 213 source columns omitted (mostly adult/ped breakdowns, percentage-change variants, and
+    per-hospital-reporter normalizations). Available on the source endpoint if needed.
+  flusight_target_column: totalconfflunewadm
+computed:
+  last_ingested: '2026-04-25T22:26:56Z'
+  row_count: 19966
+  time_coverage:
+  - start: '2020-08-08'
+    end: '2026-04-18'
+  geography_unit_count: 67
+  observed_cadence_days: 7
+  missing_gaps: []
+---
+
+# CDC NHSN Hospital Respiratory Data (HRD)
+
+NHSN HRD is the FluSight scoring target from the 2024–25 season onward. The feed includes
+backfilled HHS Protect data going back to 2020-08, but the underlying reporting program
+changed in 2024-11 (voluntary → mandatory). For long-term modeling that crosses that boundary,
+treat pre-2024-11 and post-2024-11 as having different observational regimes.
+
+Hospital reporting became voluntary 2024-05-01 to 2024-11-09; mandatory reporting resumed
+under NHSN HRD starting epiweek 2024-46. The voluntary period has reduced coverage.
+
+**Source:** <https://data.cdc.gov/Public-Health-Surveillance/Weekly-Hospital-Respiratory-Data-HRD-Metrics-by-Ju/ua7e-t2fy/about_data>
+
+## Coverage
+
+- **Time:** 2020-08-08 → 2026-04-18
+- **Cadence:** `weekly` (observed median spacing: 7 days)
+- **Geography levels:** `national`, `subnational-region`, `subnational-state` — 67 unique location IDs
+- **Countries:** US
+- **Pathogens:** `influenza`, `sars-cov-2`, `rsv`
+- **Surveillance category:** `respiratory`
+- **Rows:** 19,966
+
+## Columns
+
+| Column | Unit | value_type | Aggregation | Description |
+|--------|------|------------|-------------|-------------|
+| `totalconfflunewadm` | admissions/week | `incident` | `sum` | New laboratory-confirmed influenza hospital admissions (FluSight target) |
+| `totalconfc19newadm` | admissions/week | `incident` | `sum` | New laboratory-confirmed COVID-19 hospital admissions |
+| `totalconfrsvnewadm` | admissions/week | `incident` | `sum` | New laboratory-confirmed RSV hospital admissions (mandatory reporting from epiweek 2024-46) |
+| `numinptbeds` | beds | `stock` | `mean` | Total staffed inpatient beds (capacity denominator) — point-in-time |
+| `numinptbedsocc` | beds | `stock` | `mean` | Staffed inpatient beds occupied — point-in-time |
+| `numicubeds` | beds | `stock` | `mean` | Total ICU beds — point-in-time |
+| `numicubedsocc` | beds | `stock` | `mean` | ICU beds occupied — point-in-time |
+| `totalconfc19icupats` | patients | `stock` | `mean` | Confirmed COVID-19 patients in ICU — point-in-time |
+| `totalconffluicupats` | patients | `stock` | `mean` | Confirmed influenza patients in ICU — point-in-time |
+| `totalconfflunewadmper100k` | admissions/week per 100k population | `rate` | `rate` | Weekly flu admission rate per 100k population |
+| `totalconfc19newadmper100k` | admissions/week per 100k population | `rate` | `rate` | Weekly COVID-19 admission rate per 100k population |
+| `totalconfflunewadmcumulativeseasonalsum` | admissions | `cumulative` | `max` | Cumulative flu admissions since start of respiratory season |
+| `totalconfc19newadmcumulativeseasonalsum` | admissions | `cumulative` | `max` | Cumulative COVID-19 admissions since start of respiratory season |
+| `totalconfrsvnewadmcumulativeseasonalsum` | admissions | `cumulative` | `max` | Cumulative RSV admissions since start of respiratory season |
+
+### Additional data columns
+
+- **`location_name`** — 2-letter postal abbreviation as reported by the source. Kept for traceability; `location_id` is canonical.
+- **`respseason`** — Respiratory season identifier (e.g. '2024-2025'). NHSN-specific; useful for grouping by season but doesn't appear in other sources.
+
+## Interpretation caveats
+
+Things that may differ from how other sources define a similar measure. If you're combining this dataset with another, read these first.
+
+- **`numinptbeds`** — Counts only *staffed* beds (those with available staff to operate). HHS Protect's analogous capacity column had different inclusion criteria; do not naively splice across the 2024-11 boundary.
+- **`totalconfflunewadm`** — Counts new admissions where flu was confirmed by lab on or within 14 days of admission. Reporting jurisdictions varied this rule pre-2024-11; treat pre-2024-11 values as approximate.
+- **`totalconfrsvnewadm`** — RSV mandatory reporting started epiweek 2024-46; pre-2024-46 values are NaN or sparsely populated by voluntary reporters.
+- **`*cumulativeseasonalsum`** — Cumulative within a respiratory season (resets at season boundary). Use with `value_type: cumulative` discipline — never sum, diff to recover incident.
+
+## Related datasets in EPI-Eval
+
+- **Gold standard for:** `flusight-forecast-hub`, `covid19-forecast-hub`, `rsv-forecast-hub`
+- **Succeeds:** `hhs-protect` (different reporting program; do not splice rows directly without normalization)
+
+## Access
+
+- **Availability:** `open`
+- **Access type:** `socrata`
+- **License:** other
+- **Tier:** 1
+
+---
+
+*Schema version `0.1` · Last ingested 2026-04-25T22:26:56Z · `source_id: nhsn-hrd` · Manifest section §1.1*