Childhood obesity and risk of pediatric multiple sclerosis and clinically isolated syndrome
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Published on: February 23, 2024
Annette Langer-Gould1, Sonu M Brara, Brandon E Beaber
1Department of Research & Evaluation, Kaiser Permanente of Southern California, Pasadena, USA. Annette.M.Langer-Gould@kp.org
Insights
Childhood obesity significantly increases the risk of pediatric multiple sclerosis (MS) and clinically isolated syndrome (CIS), especially in girls. This trend highlights a growing public health concern with potential long-term neurological consequences.
Area of Science:
- Neurology
- Pediatrics
- Public Health
Background:
- Childhood obesity is a growing epidemic with potential long-term health implications.
- Pediatric multiple sclerosis (MS) and clinically isolated syndrome (CIS) are demyelinating diseases affecting children and adolescents.
- Understanding risk factors for pediatric MS/CIS is crucial for early intervention and prevention.
Purpose of the Study:
- To investigate the association between childhood obesity and the risk of developing pediatric multiple sclerosis (MS) or clinically isolated syndrome (CIS).
Main Methods:
- A retrospective cohort study was conducted using data from Kaiser Permanente Southern California (KPSC) between 2004 and 2010.
- Body mass index (BMI) was assessed prior to symptom onset for pediatric MS/CIS cases and for a large control cohort.
- Weight categories (normal, overweight, moderate obesity, extreme obesity) were determined using age- and sex-specific BMI percentiles.
Main Results:
- 75 pediatric cases of MS or CIS were identified, predominantly in girls and adolescents aged 11-18.
- Obesity was significantly associated with an increased risk of MS/CIS in girls (p=0.005), but not in boys (p=0.93).
- Extremely obese girls had a 3.76-fold increased risk of MS/CIS, and obese cases were more likely to present with transverse myelitis.
Conclusions:
- The current childhood obesity epidemic is projected to increase the burden of MS/CIS.
- Adolescent girls appear particularly vulnerable to the neurological effects of obesity.
- These findings underscore the need for public health strategies to address childhood obesity and its associated health risks.
Objective:
To determine whether childhood obesity is a risk factor for developing pediatric multiple sclerosis (MS) or clinically isolated syndrome (CIS).
Methods:
Cases were identified through the Kaiser Permanente Southern California (KPSC) pediatric acquired demyelinating diseases cohort between 2004 and 2010. For cases, body mass index (BMI) was obtained prior to symptom onset, for the underlying cohort BMI was obtained through the KPSC Children's health study (n = 913,097). Weight classes of normal weight, overweight, moderate obesity, and extreme obesity were assigned based on BMI specific for age and sex.
Results:
We identified 75 newly diagnosed pediatric cases of MS or CIS, the majority of which were in girls (n = 41, 55%), age 11-18 (n = 54, 72%). Obesity was associated with a significantly increased risk of MS/CIS in girls (p = 0.005 for trend) but not in boys (p = 0.93). The adjusted odds ratio and 95% confidence intervals for CIS/MS among girls was 1.58 (0.71-3.50) for overweight compared to normal weight (reference category), 1.78 (0.70-4.49) for moderately obese, and 3.76 (1.54-9.16) for extremely obese. Moderately and extremely obese cases were more likely to present with transverse myelitis compared with normal/overweight children (p = 0.003).
Conclusion:
Our findings suggest the childhood obesity epidemic is likely to lead to increased morbidity from MS/CIS, particularly in adolescent girls.
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