Table 2 Subjects who reported always being slim; being varsity athletes; and in the three body mass index (BMI) categories in the motor neuron disease and control group

VariableMotor neuron disease, n (%)Controls, n (%)Simple model,* OR (95% CI)Adjusted model,* OR (95% CI)
* The unadjusted (each variable included independently in each analysis) and adjusted odds ratios (OR) (age at symptom onset, sex, always-slim, varsity athlete, and BMI as a categorical variable simultaneously included in a single analysis) from logistic regression.
Always slim
    No79 (33.1)61 (52.1)1 (reference)1 (reference)
    Yes160 (66.9)56 (47.9)2.21 (1.40–3.47)2.10 (1.08–4.07)
Varsity athlete
    No144 (62.1)89 (73.6)1 (reference)1 (reference)
    Yes88 (37.9)32 (26.4)1.70 (1.04–2.76)1.89 (1.05–3.40)
BMI
    Obese (≥30)27 (10)29 (21)1 (reference)1 (reference)
    Overweight (25–29.9)95 (35)46 (33)2.22 (1.18–4.17)1.41 (0.62–3.19)
    Normal/underweight (≤24.9)148 (55)64 (46)2.48 (1.36–4.53)1.13 (0.44–2.89)