Health Insurance Index 2.0: UnitedHealthcare Leads
Evidence pack, 5W Public Relations Research

Measured: November 3, 2026 · 24 questions × 3 runs · 288 AI answers
This pack holds the measurement data behind the report. Every number in the report can be
recounted from these files. Counts in the report come from summary.csv and per_engine.csv.

Files:
- summary.csv: One row per tracked name: answers naming it, appearance rate and 95% interval, first-mention position, own-domain citation, citation share, Google AI Overview counts and five-engine totals.
- per_engine.csv: The same counts split by engine (ChatGPT, Claude, Gemini, Perplexity).
- significance.csv: Pairwise comparisons between the leading names (z-test, p-value, whether the 95% intervals overlap).
- sources.csv: Cited domains: number of citations, share of all citations, and how many answers cited each domain.
- entity_rollups.csv: Spellings and name variants counted together with each tracked name.
- unmatched_names.csv: Names that appeared in answers but were not on the tracked list, unfiltered, with answer counts.
- status-decisions.json: Decisions on names in transition (mergers, renames), with the source used.
- trials.csv: One row per answer: engine, question, run, names found, citations, measurement time.
- raw_responses.jsonl: The full text of every answer and Google AI Overview, with its citations, one JSON record per line.

SHA-256 checksums:
498de2a917faeabfdb00ddee8e85efb72706ed00f17f539e9b90e17e871c1fd9  summary.csv
2f036df387c39f7877f8a1abcb836381581ec21952d8e9ed66bff7f2f4bbaf3f  per_engine.csv
3dd39d8bcdf0c4100623bef0276d7f8022e4128ac9cf357c3eb878d6b217010c  significance.csv
412a5976fc53b77e76df8f5ea28fe77abf25d8bb414e1d3b84a5e53c03ad8334  sources.csv
72fafc29a02a01b92d2234d3b7f9058550806df7cc146b11201e10e3cbe0384b  entity_rollups.csv
06025440a29b40f4b53063d959eaaca09f06f7bc51aa231bc0892a1098bafa02  unmatched_names.csv
358fef0c53c0a96dd7f8d31d24743c9e6035d492debd4cc3cb938ffb451043ec  status-decisions.json
00f5c1dd053eb08219dc4fb5b5ec02239bc861fb4a805daaf8441376601e0e4e  trials.csv
325a656341aa373e777919f1be0f8adbbf757ab96776342743dda4d7c64ecc98  raw_responses.jsonl

Questions or corrections: info@5wpr.com
