{
  "study": "Italy reader discovery channels, observation2024",
  "source": "https://www.istat.it/tavole-di-dati/lettura-di-libri-e-generi-di-libri-letti-scrittura-di-libri-prelettura-dei-bambini-di-0-5-anni-ascolto-di-podcast-anno-2024/",
  "download": "https://www.istat.it/wp-content/uploads/2025/12/Tavole_lettura_scrittura-libri_prelettura_podcast_2024.xlsx",
  "source_sha256": "cdd6568e6650e45d263c9253c8d5beac8e0f59ae530a954989168486ab6e99a3",
  "accessed": "2026-10-28",
  "license": "Istat CC BY4.0; https://www.istat.it/note-legali/",
  "tables": {
    "22": "Regional percentages; leisure book readers6+ in same area",
    "21": "Adult age-band percentages; sexes combined, same age-band leisure readers"
  },
  "comparison": "personal_recommendations minus social_media in percentage points; ratio personal_recommendations/social_media. Calculated from percentages published to one decimal; estimates descriptive, no standard errors available in extracted tables.",
  "rules": [
    "20regions only; Trento and Bolzano shown separately but excluded from20region count. Macroregions, municipality types and national estimate never summed.",
    "Adult age bands18+ retained separately; no adult national average reconstructed.",
    "Multiple responses overlap; no sums into shares, no combined individual groups, no attribution of sales or efficacy.",
    "No census claims. Published estimates not raw respondents; no sample sizes inferred from thousands tables.",
    "Source symbols preserved by interpretation: hyphen means no observed case in applicable table; absent/unknown not zero. All selected regional and adult-age percentage cells numeric."
  ],
  "pilot_rejected": "Library census2025 group Tables25/26 not used: eligible denominator insufficiently explicit in generic table heading. No unverified library-derived findings enter this study."
}