{"podcast":{"title":"Dr. John Campbell","slug":"dr-john-campbell-7851784","podcast_index_feed_id":7851784,"rss_url":"https://feeds.megaphone.fm/VG9554039150","website_url":null,"image_url":"https://megaphone.imgix.net/podcasts/7a133470-32e4-11f1-ae26-ef5a830a5f06/image/aacd596ff9b51467520b0238cfcd1c87.png?ixlib=rails-4.3.1&max-w=3000&max-h=3000&fit=crop&auto=format,compress","author":"Campbellteaching","episode_count":658,"summary":"Hello Everyone, My name is John Campbell and I am a retired Nurse Teacher and former clinical nurse based in England. I also do some teaching in Asia and Africa when time permits. These videos are to help students to learn the background to all forms of health care. My PhD focused on the development of open learning resources for nurses nationally and internationally. LinkedIn profile, https://www.linkedin.com/in/dr-john-campbell-5256223b/ Twitter, https://twitter.com/Johnincarlisle Disclaimer; These media including videos, book, e book, articles, podcasts are not peer-reviewed. They should never replace individual clinical judgement from your own health care provider. No media-based material on this channel is suitable for using as professional medical advice. All comments are also for educational purposed only and must never replace advice from your own health care provider","last_synced_at":"2026-09-22T06:22:02.195523+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784"},"episode":{"title":"Low vitamin D and increased deaths","slug":"low-vitamin-d-and-increased-deaths","published_at":"2026-09-05T12:00:00+00:00","page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784/low-vitamin-d-and-increased-deaths","show_page_url":"https://stenobird.com/podcast/dr-john-campbell-7851784","url":"https://traffic.megaphone.fm/VG9677050079.mp3","audio_url":"https://traffic.megaphone.fm/VG9677050079.mp3","summary":"Lower levels of vitamin D, higher rates of death Association of Serum 25-Hydroxyvitamin D Concentrations With All-Cause and Cause-Specific Mortality Among Adult Patients With Existing Cardiovascular Disease https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8496747/ Observational study, non-interventional Background Vitamin D, lower levels, common in patients with cardiovascular disease (CVD) Study of patients with existing CVD Prospectively examine the associations of serum 25-hydroxyvitamin D [25(OH)D] concentrations with, All-cause mortality and, cause-specific mortality Methods N = 37,079 patients with CVD from the UK Biobank study From a prospective cohort of half a million, aged 40–69 years https://www.ukbiobank.ac.uk CVD Coronary heart disease Atrial fibrillation Heart failure Stroke Results Among 37,079 patients with CVD at baseline, 57.5% were vitamin D deficient Deficient, 25[OH]D less than 50 nmol/L (less than 20ng/ml) Median follow-up of 11.7 years Deaths that occurred = 6,319 total 2,161 deaths from CVD 2,230 deaths from cancer 623 deaths from respiratory disease 1,305 other-cause deaths Non-linear inverse associations For all-cause mortality Cancer mortality Respiratory disease mortality Other-cause mortality That is deaths went up as vitamin D levels went down (P-non-linearity less than 0.01) Approximately linear inverse associations for CVD That is deaths went up as vitamin D levels went down (P-non-linearity = 0.074) Among CVD patients with vitamin D deficiency For every 10 nmol/L increment in serum 25(OH)D concentrations, There was an associated 12% reduced risk for all-cause mortality There was an associated 9% reduced risk for CVD mortality. In patients with vitamin D deficiency Per 10 nmol/L increase in serum 25(OH)D levels, was associated with a lower r…","meta_description":"Lower levels of vitamin D, higher rates of death Association of Serum 25-Hydroxyvitamin D Concentrations With All-Cause and Cause-Specific Mortality Among…","key_points":[],"chapters":[],"topics":[],"duration_seconds":1387,"processing_state":"not_requested","actions":[{"name":"request_transcript","method":"POST","url":"https://stenobird.com/v1/public/podcasts/dr-john-campbell-7851784/episodes/low-vitamin-d-and-increased-deaths/transcription-requests","description":"Idempotently request low-priority transcript generation for this episode."},{"name":"read_markdown","method":"GET","url":"https://stenobird.com/podcast/dr-john-campbell-7851784/low-vitamin-d-and-increased-deaths.md","description":"Read the agent-friendly Markdown representation of this episode resource."}]}}