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Larson RD. Psychometric Properties of the Modified Fatigue Impact Scale.International Journal of MS Care. 2013;15(1):15-20. doi:10.7224/1537-2073.2012-019.

Freal JE, Kraft GH, Coryell JK.Symptomatic fatigue in multiple sclerosis.Arch Phys Med Rehabil. 1984 Mar;65(3):135-8.

Kos D, Nagels G, D'Hooghe MB, Duportail M, Kerckhofs E. A rapid screening tool for fatigue impact in multiple sclerosis. BMC Neurology. 2006;6:27. doi:10.1186/1471-2377-6-27.

Tellez N et al. Does the Modified Fatigue Impact Scale offer a more comprehensive assessment of fatigue in MS? Mult Scler 2005;11(2):198– 202

Dr. John Fisk

var calc_output = [];
var q1 = parseInt(q1);
var q2 = parseInt(q2);
var q3 = parseInt(q3);
var q4 = parseInt(q4);
var q5 = parseInt(q5);
var q6 = parseInt(q6);
var q7 = parseInt(q7);
var q8 = parseInt(q8);
var q9 = parseInt(q9);
var q10 = parseInt(q10);
var q11 = parseInt(q11);
var q12 = parseInt(q12);
var q13 = parseInt(q13);
var q14 = parseInt(q14);
var q15 = parseInt(q15);
var q16 = parseInt(q16);
var q17 = parseInt(q17);
var q18 = parseInt(q18);
var q19 = parseInt(q19);
var q20 = parseInt(q20);
var q21 = parseInt(q21);
var msg = '';
var mini_msg = '';
var total = q1 + q2 + q3 + q4 + q5 + q6 + q7 + q8 + q9 + q10 + q11 + q12 + q13 + q14 + q15 + q16 + q17 + q18 + q19 + q20 + q21;
var physical = q4 + q6 + q7 + q10 + q13 + q14 + q17 + q20 + q21;
var cognitive = q1 + q2 + q3 + q5 + q11 + q12 + q15 + q16 + q18 + q19;
var psychosocial = q8 + q9;
mini_msg = 'out of 84 points';
msg += 'Physical: ' + physical + '/36 ';
msg += 'Cognitive: ' + cognitive + '/40 ';
msg += 'Pyschosocial: ' + psychosocial + '/8 ';

calc_output.push({ name: 'mini', value: total.toFixed(0), value_text: 'points', message: mini_msg });
calc_output.push({ name: 'MFIS', value: total.toFixed(0), value_text: 'points '+ mini_msg, message: msg });

Modified Fatigue Impact Scale (MFIS)

Measures the impact fatigue takes on a patient's daily life.

Modified Fatigue Impact Scale

The Modified Fatigue Impact Scale (MFIS) measures the impact fatigue takes on a patient's daily life.

Shortened Modified Fatigue Impact Scale

EDSS/FSS for Multiple Sclerosis

McDonald Criteria (2017 Revision)

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Calc Function