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Glossary Odds Ratio

compares the odds of an event occurring between two groups

The Odds Ratio (OR) is a statistical measure used to determine the strength of association between two events, often used in medical research. For example, in a study examining the link between a specific treatment and hair regrowth in individuals with alopecia, an OR greater than 1 suggests that the treatment is associated with higher odds of hair regrowth, while an OR less than 1 suggests lower odds.

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Research

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research Why Odds Ratios Can Be Tricky Statistics

3 citations , November 2018 in “The Journal of Clinical Psychiatry”

This study discusses the difficulties in interpreting and communicating the association of 5α-reductase inhibitors with impaired libido and erectile dysfunction in men with benign prostatic hyperplasia due to the use of odds ratios instead of relative risks.

research Increased prevalence of vitamin D deficiency in patients with alopecia areata: a systematic review and meta‐analysis

48 citations , April 2018 in “JEADV. Journal of the European Academy of Dermatology and Venereology/Journal of the European Academy of Dermatology and Venereology”

This study found that individuals with alopecia areata had significantly lower serum vitamin D levels and a higher prevalence of vitamin D deficiency compared to people without the condition.

research A Meta-Analysis on the Relationship Between Hair Dye and the Incidence of Non-Hodgkin’s Lymphoma

6 citations , December 2018 in “Medical principles and practice”

This meta-analysis reported that individuals who frequently use hair dye or have used it for over 20 years have an increased risk of developing non-Hodgkin's lymphoma.

research Longer TA repeat but not V89L polymorphisms in the SRD5A2 gene may confer acne risk in the Chinese population

3 citations , January 2018 in “Postępy Dermatologii i Alergologii”

This study suggests that SRD5A2 polymorphisms may increase the risk of acne in individuals with normal serum testosterone levels, particularly in the Chinese population.

research Hyperpigmentation post laser hair removal in patients taking Vitamin D supplements

1 citations , January 2021 in “Journal of Dermatology and Dermatologic Surgery”

This study found that taking Vitamin D supplements may be associated with a higher risk of hyperpigmentation after laser hair removal.

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Community Join

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community My Theory Of Androgenic Alopecia

16 upvotes 10 months ago

Hair loss is linked to cellular physiology and the IGF-1 to TGF-B1 ratio, not just androgen sensitivity. The theory lacks evidence, while finasteride and minoxidil are effective treatments.

community There’s a war against finasteride and dht blockers

in Finasteride/Dutasteride 417 upvotes 6 months ago

Finasteride is a controversial hair loss treatment, with some users experiencing positive results and others facing side effects like erectile dysfunction. The discussion emphasizes the importance of personal choice and informed decision-making.

community Oral Minoxidil: Dosing, Timing, PE Risk, and Why Your Weight Matters (with actual data)

223 upvotes 4 months ago

Oral minoxidil dosing should be based on body weight to minimize side effects, with higher doses increasing risks like pericardial effusion. Combining oral minoxidil with topical treatments and finasteride can improve hair growth, but regular heart health monitoring is essential.

community Publication concludes finasteride is a associated with a 60% risk of persistent sexual dysfunction.

345 upvotes 6 months ago

Finasteride is not linked to a 60% risk of persistent sexual dysfunction; this figure applies only to those already experiencing sexual issues. Most users do not have side effects, and the study's methodology is criticized for selection bias.

community Dutasteride 0.5 mg/day lowers scalp DHT levels by only 50% (but 2.5 mg/day lowers scalp DHT by 80%).

in Finasteride/Dutasteride 132 upvotes 1 year ago

Dutasteride at 2.5 mg/day reduces scalp DHT by 80%, while 0.5 mg/day reduces it by 50%, with minimal difference in side effects. Users often combine it with finasteride, RU58841, and minoxidil for better hair loss management, though side effects like dry skin and pimples are noted.

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Clinics

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Hair TransplantHair Loss Treatments
Dr. Yates MD - Hair Transplantation + Restoration in ChicagoChicago, IL · US

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