Wolfe F, Michaud K, Pincus T. A composite disease activity scale for clinical practice, observational studies, and clinical trials: the patient activity scale (PAS/PAS-II). J Rheumatol. 2005;32(12):2410-5.

Anderson J, Caplan L, Yazdany J, et al. Rheumatoid arthritis disease activity measures: American College of Rheumatology recommendations for use in clinical practice. Arthritis Care Res (Hoboken). 2012;64(5):640-7.

Dr. Frederick Wolfe

//outputs
var calc_output = [];

//user inputs
var haq = parseFloat(haq1) + parseFloat(haq2) + parseFloat(haq3) + parseFloat(haq4) + parseFloat(haq5) + parseFloat(haq6) + parseFloat(haq7) + parseFloat(haq8) + parseFloat(haq9) + parseFloat(haq10);
haq = haq/10;
var pain = parseFloat(pain);
var global = parseFloat(global);
var risk;
var msg;

//final score
var score = (haq*3.33) + pain + global;
score = score/3;
score = score.toFixed(2);
  
//disease activity
if (score <= 0.25 && score >= 0) {
	risk = 'Remission';
  	msg = risk;
} else if (score <= 3.70 && score >= 0.26) {
	risk = 'Low/minimal';
  	msg = risk + " disease activity";
} else if (score <= 7.99 && score >= 3.71) {
	risk = 'Moderate';
  	msg = risk + " disease activity";
} else {
	risk = 'High/severe';
  	msg = risk + " disease activity";
}

//result for user 
calc_output.push({
	name: 'mini',
	value: score,
	value_text: 'points',
	message: msg
});
calc_output.push({
	name: 'group',
	value: score,
	value_text: 'points',
	message: 'PAS II'
});
calc_output.push({
	name: 'ppf',
	value: risk,
	value_text: '',
	message: 'Disease activity<br/><br/><guideline id = "10123">ACR guideline</guideline>'
});



Patient Activity Scale II (PAS II) for RA

haq3

haq4

haq1

haq6

haq2

haq8

haq5

haq9

haq10

haq7

pain

global

<p>Quantifies severity of rheumatoid arthritis (RA) using patient-reported symptoms.</p>

Patient Activity Scale II for RA

The Patient Activity Scale (PAS) for RA quantifies severity of rheumatoid arthritis (RA) using patient-reported symptoms.

Patient Activity Scale for RA

DAS28-ESR for Rheumatoid Arthritis

DAS28-CRP for Rheumatoid Arthritis

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Calc Function