Supporting data for "Information Accessibility Under Temporal Compression: How Emergency Systems Fail Older Adults and What to Rebuild"

This dataset contains the de-identified computational analysis materials underlying the study "Information Accessibility Under Temporal Compression: How Emergency Systems Fail Older Adults and What to Rebuild" (submitted to Universal Access in the Information Society). Raw interview notes are NOT included, in accordance with the ethics approval (Protocol No. ZSLL20260008) and participant privacy constraints. The materials document the full computationally-assisted thematic analysis (CATA) workflow reported in the manuscript, organized in three phases: Phase 1 (BERTopic clustering and researcher-led calibration):- embeddings_cache.npy / embeddings_cache_q_level.npy: cached 768-dimensional sentence embeddings of the 4,054 semantic units (text2vec-base-chinese)- sensitivity_analysis_report.xlsx / sensitivity_analysis_report01.xlsx: parameter-sensitivity results varying min_topic_size (5/10/15/20/30) across UMAP random seeds- bertopic_fusion_result.xlsx, cluster_2_analysis_results.xlsx: clustering outputs- topic_similarity_matrix_full.xlsx, topic_merge_candidates_top50.xlsx: candidate-theme similarity and merge-candidate ranking supporting the four-rule calibration- table1_cluster_to_indicator_mapping.xlsx, cluster_mapping_condensed.csv / cluster_mapping_balanced.csv: the 43-cluster to 18-indicator consolidation records- all_units_with_topic.xlsx: the 4,054 de-identified semantic units with topic assignments- fig_intertopic_map_labeled.tiff: source image of Figure 1 (intertopic distance map) Phase 2 (similarity-matrix guided aggregation):- semantic_similarity_18x18.xlsx: pairwise cosine-similarity matrix of the 18 tertiary indicators- dendrogram_18to7.tiff and heatmap_18x18.tiff: source images of Figure 2 (dendrogram and reordered heatmap)- clustering_statistics.txt: within-/between-cluster similarity statistics- secondary_indicators_mapping.xlsx: 18-to-7 aggregation records Phase 3 (axial coding and reconstruction):- primary_indicators_mapping.xlsx: 7-to-3 primary predicament synthesis records- tensions_and_design_principles.xlsx: structural tensions and derived design principles- three_level_indicator_system.xlsx / barrier_indicator_system.xlsx: the complete three-level barrier indicator system (Tables 3-5) These materials allow independent audit and partial reproduction of the clustering, calibration, aggregation, and axial-coding decisions described in the manuscript.