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Risk associated behavior in premorbid multiple sclerosis: A case-control study.

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This summary is machine-generated.

Individuals who develop multiple sclerosis (MS) may exhibit riskier pre-symptom behaviors. This includes smoking, alcohol consumption, recreational drug use, and a history of glandular fever, suggesting environmental exposures.

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Area of Science:

  • Neurology
  • Epidemiology
  • Public Health

Background:

  • Multiple sclerosis (MS) development is linked to smoking, glandular fever, and low vitamin D.
  • Previous research suggests risk-associated behaviors precede MS onset.
  • This study investigates health-adverse premorbid behaviors in MS development.

Purpose of the Study:

  • To explore pre-symptomatic health-adverse behaviors in individuals who later developed MS.
  • To identify novel associations between premorbid lifestyle and MS onset.
  • To test the hypothesis of a riskier premorbid lifestyle in MS patients.

Main Methods:

  • A case-control study comparing 94 MS patients with 59 benign headache patients.
  • Questionnaires assessed pre-symptomatic alcohol, smoking, substance abuse, glandular fever, sexual history, and other behaviors.
  • Data were adjusted for age of first symptoms, gender, and smoking status.

Main Results:

  • MS subjects reported significantly more alcohol consumption (OR 6.91), earlier alcohol initiation (mean 16.9y), and heavier smoking (OR 2.24).
  • History of glandular fever (OR 3.07) and recreational drug use (OR 3.90), particularly cannabis (OR 4.10), were more common in MS patients.
  • Novel associations included more sexual partners (mean 3.97), more pregnancies (mean 1.43), pregnancy terminations (OR 5.05), attending all-night parties (OR 2.45), and sunbathing (OR 2.77).

Conclusions:

  • MS patients exhibit a significantly riskier premorbid lifestyle compared to controls.
  • Confirmed associations include smoking, alcohol, and glandular fever.
  • Novel associations suggest environmental exposures from behaviors like drug use, partying, and sexual history may play a role in MS development.