[blocked-human] CHIA Case Mix ED/inpatient data release — awaiting redirect to Case Mix department

[Hefrock]

Status: Blocked on an external party (CHIA). This is a periodic follow-up reminder — check back and re-contact if no reply.

Who it's from

Center for Health Information and Analysis (CHIA), Massachusetts. Prior correspondence was with CHIA general/records intake; as of the last reply I've been redirected to a different department that handles Case Mix data (specific contact/email still TBD — next action is to identify and reach them).

What I asked for (original request)

ED case-mix data, and whether it is linkable to hospital admission data. Worth revisiting the ED case-mix data specifically and confirming that linkage.

Note: my needs may have shifted since the original request — see "Current data needs" below.

Date last followed up

2026-06-16

Current data needs (may differ from the original request)

Hospital demand / capacity measures — ideally hospital-level daily for MGH:

• Emergency department visit volumes
• ED length of stay / throughput metrics
• ED admission and discharge volumes
• Inpatient admission volumes
• Observation stay volumes
• ICU utilization or bed counts
• Any available indicators of hospital capacity strain or crowding

If hospital-level daily data are not available, request guidance on:

• Which CHIA Case Mix (or other) datasets include ED and inpatient utilization
• Reporting frequency (daily / weekly / monthly) for these measures
• Whether hospital-level extracts for MGH can be requested for research purposes
• The appropriate process to apply for access to these datasets

Why it matters (project context)

This is the candidate all-cause ED / inpatient source that would let hospital_demand move beyond today's respiratory-illness-only proxy (see README "Known limitations"). ED case-mix linkable to admissions could also let us test the age-stratified young-adult vs. elderly ED-population split noted there.

Next action

1. Identify and contact the CHIA Case Mix department (get a named contact/email).
2. Re-confirm whether the revised needs above change the dataset choice, reporting frequency, and application/access path.
3. Re-follow-up if no response within ~2–3 weeks of last contact.