# Risk prediction of persistent pain after breast cancer surgery function radioValue(form, radioName) { var radios = document.getElementsByName(radioName); for (var i = 0, length = radios.length; i < length; i++) { if (radios[i].form == form && radios[i].checked) { return parseFloat(radios[i].value); } } } function setRadio(radios, value) { for (var i = 0; i < radios.length; i++) { radios[i].checked = radios[i].value == value; } } function calculateResult1(form) { var A2 = parseFloat(form.A2.value); var value = ((Math.exp(-2.34835 + 0.32926 * A2)) / (1 + Math.exp(-2.34835 + 0.32926 * A2)) * 100); if (!isNaN(value)) { form.res.value = value.toFixed(1) + " %"; } else { form.res.value = ""; } } function calculateResult2(form) { var A1 = radioValue(form, "A1"); var A2 = parseFloat(form.A2.value); var A3 = radioValue(form, "A3"); var value = ((Math.exp(-2.82667 + 0.61823 * A1 + 0.29906 * A2 + 0.78301 * A3)) / (1 + Math.exp(-2.82667 + 0.61823 * A1 + 0.29906 * A2 + 0.78301 * A3)) * 100); if (!isNaN(value)) { form.res.value = value.toFixed(1) + " %"; } else { form.res.value = ""; } } function calculateResult3(form) { var A1 = radioValue(form, "A1"); var A2 = parseFloat(form.A2.value); var A3 = radioValue(form, "A3"); var A4 = parseFloat(form.A4.value); var value = ((Math.exp(-3.08995 + 0.60387 * A1 + 0.26294 * A2 + 0.68992 * A3 + 0.10479 * A4)) / (1 + Math.exp(-3.08995 + 0.60387 * A1 + 0.26294 * A2 + 0.68992 * A3 + 0.10479 * A4)) * 100); if (!isNaN(value)) { form.res.value = value.toFixed(1) + " %"; } else { form.res.value = ""; } } function calculateResult4(form) { var A1 = radioValue(form, "A1"); var A2 = parseFloat(form.A2.value); var A3 = radioValue(form, "A3"); var A5 = parseFloat(form.A5.value); var value = ((Math.exp(-3.078436738 + 0.604027692 * A1 + 0.260923397 * A2 + 0.601087945 * A3 + 0.153333637 * A5)) / (1 + Math.exp(-3.078436738 + 0.604027692 * A1 + 0.260923397 * A2 + 0.601087945 * A3 + 0.153333637 * A5)) * 100); if (!isNaN(value)) { form.res.value = value.toFixed(1) + " %"; } else { form.res.value = ""; } } function calculateResults() { calculateResult1(form1); calculateResult2(form2); calculateResult3(form3); calculateResult4(form4); } function transfer(field1, field2, field3, field4) { field1.transferCalled = true; for (var i = 1; i < arguments.length; i++) { if (typeof arguments[i] === 'undefined') { break; } if (arguments[i].transferCalled) { break; } if (Object.prototype.toString.call( arguments[0] ) === "[object NodeList]") { if (arguments[0][0].checked) var value = arguments[0][0].value; else var value = arguments[0][1].value; setRadio(arguments[i], value); } else { arguments[i].value = arguments[0].value; } } calculateResults(); } ## Risk prediction of persistent pain after breast cancer surgery ### Preoperative model #### Preoperative pain in the operative area Insert here the average pain during the week before operation in the breast, side of chest, axilla or upper arm on NRS scale from 0 to 10. Preoperative pain in the operative area, preoperative model Select 0 1 2 3 4 5 6 7 8 9 10 #### Probability of moderate-to-severe persistent pain Less than 20% is considered low risk, 20-30% moderate risk and more than 30% high risk. These risk categories are first presented and validated in the accompanying study. Preoperative pain in the operative area, preoperative model ### Intraoperative model #### Preoperative pain in the operative area Insert here the average pain during the week before operation in the breast, side of chest, axilla or upper arm on NRS scale from 0 to 10. Preoperative pain in the operative area, intraoperative model Select 0 1 2 3 4 5 6 7 8 9 10 #### Body Mass Index Choose between < 31 or ≥ 31 to indicate whether the body mass index of the patient is < 31 or ≥ 31. Body Mass Index, intraoperative model < 31 ≥ 31 #### Axillary operation Choose between Sentinel Node Biopsy (SNB) or Axillary Lymph Node Dissection (ALND). Axillary operation, intraoperative model SNB ALND #### Probability of moderate-to-severe persistent pain Less than 20% is considered low risk, 20-30% moderate risk and more than 30% high risk. These risk categories are first presented and validated in the accompanying study. Probability of moderate-to-severe persistent pain, intraoperative model ### First postoperative day model #### Preoperative pain in the operative area Insert here the average pain during the week before operation in the breast, side of chest, axilla or upper arm on NRS scale from 0 to 10. Preoperative pain in the operative area, first postoperative day model Select 0 1 2 3 4 5 6 7 8 9 10 #### Body Mass Index Choose between < 31 or ≥ 31 to indicate whether the body mass index of the patient is < 31 or ≥ 31. Body Mass Index, first postoperative day model < 31 ≥ 31 #### Axillary operation Choose between Sentinel Node Biopsy (SNB) or Axillary Lymph Node Dissection (ALND). Axillary operation, first postoperative day model SNB ALND #### First postoperative day acute pain Insert here the maximum first postoperative day pain in the breast, side of chest, axilla or upper arm on NRS scale from 0 to 10. First postoperative day acute pain, first postoperative day model Select 0 1 2 3 4 5 6 7 8 9 10 #### Probability of moderate-to-severe persistent pain Less than 20% is considered low risk, 20-30% moderate risk and more than 30% high risk. These risk categories are first presented and validated in the accompanying study. Probability of moderate-to-severe persistent pain, first postoperative day model ### Seventh postoperative day model #### Preoperative pain in the operative area Insert here the average pain during the week before operation in the breast, side of chest, axilla or upper arm on NRS scale from 0 to 10. Seventh postoperative day acute pain, seventh postoperative day model Select 0 1 2 3 4 5 6 7 8 9 10 #### Body Mass Index Choose between < 31 or ≥ 31 to indicate whether the body mass index of the patient is < 31 or ≥ 31. Body Mass Index, seventh postoperative day model < 31 ≥ 31 #### Axillary operation Choose between Sentinel Node Biopsy (SNB) or Axillary Lymph Node Dissection (ALND). Axillary operation, seventh postoperative day model SNB ALND #### Seventh postoperative day acute pain Insert here the maximum seventh postoperative day pain in the breast, side of chest, axilla or upper arm on NRS scale from 0 to 10. Seventh postoperative day acute pain, seventh postoperative day model Select 0 1 2 3 4 5 6 7 8 9 10 #### Probability of moderate-to-severe persistent pain Less than 20% is considered low risk, 20-30% moderate risk and more than 30% high risk. These risk categories are first presented and validated in the accompanying study. Probability of moderate-to-severe persistent pain, seventh postoperative day model Updated: 27.12.2022 Print this page