Forskning
Udskriv Udskriv
Switch language
Region Hovedstaden - en del af Københavns Universitetshospital
Udgivet

Association Between Use of Marijuana and Male Reproductive Hormones and Semen Quality: A Study Among 1,215 Healthy Young Men

Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

DOI

  1. Levels of and Changes in Childhood Body Mass Index in Relation to Risk of Atrial Fibrillation and Atrial Flutter in Adulthood

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Infertility in a Cohort of Male Danish Firefighters: A Register-Based Study

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. ASSOCIATIONS OF OCCUPANT MOTOR VEHICLE CRASH WITH FUTURE HEART FAILURE AND ISCHEMIC STROKE IN OLDER ADULTS

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. Effect estimates in randomized trials and observational studies: comparing apples with apples

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  5. Mortality in women treated with assisted reproductive technology treatment - addressing the healthy patient effect

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  1. Increases in bioactive IGF do not parallel increases in total IGF-I during growth hormone treatment of children born SGA

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  2. Semen quality in hypogonadal acromegalic patients

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  3. Measurement of peripheral arterial tonometry in patients with diabetic foot ulcers during courses of hyperbaric oxygen treatment

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  4. A Polygenic Risk Score Suggests Shared Genetic Architecture of Voice Break With Early Markers of Pubertal Onset in Boys

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

  5. Sex-specific estrogen levels and reference intervals from infancy to late adulthood determined by LC-MS/MS

    Publikation: Bidrag til tidsskriftTidsskriftartikelForskningpeer review

Vis graf over relationer

A total of 1,215 young Danish men aged 18-28 years were recruited between 2008 and 2012 when they attended a compulsory medical examination to determine their fitness for military service. The participants delivered a semen sample, had a blood sample drawn, and underwent a physical examination. They responded to questionnaires including information on marijuana and recreational drug use during the past 3 months (no use, use once per week or less, or use more than once per week). A total of 45% had smoked marijuana within the last 3 months. Regular marijuana smoking more than once per week was associated with a 28% (95% confidence interval (CI): -48, -1) lower sperm concentration and a 29% (95% CI: -46, -1) lower total sperm count after adjustment for confounders. The combined use of marijuana more than once per week and other recreational drugs reduced the sperm concentration by 52% (95% CI: -68, -27) and total sperm count by 55% (95% CI: -71, -31). Marijuana smokers had higher levels of testosterone within the same range as cigarette smokers. Our findings are of public interest as marijuana use is common and may be contributing to recent reports of poor semen quality.

OriginalsprogEngelsk
TidsskriftAmerican Journal of Epidemiology
Vol/bind182
Udgave nummer6
Sider (fra-til)473-81
Antal sider9
ISSN0002-9262
DOI
StatusUdgivet - 15 sep. 2015

ID: 45664694