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262
src/app/utils/calculators/Transplantation/IMPACT.ts
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262
src/app/utils/calculators/Transplantation/IMPACT.ts
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import { Calculator, Input, Interpretation, Values } from "../types";
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const parameters : Input[] = [
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{
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id:"age",
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name:"Age",
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placeholder:"Enter age",
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type:"number",
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min:0,
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required:true,
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},
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{
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id:"sbilirubin",
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name:"Serum Bilirubin",
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placeholder:"Enter the serum bilirubin value in mg/dL",
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type:"number",
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defaultUnit:"mg/dL",
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required:true
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},
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{
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id:"crcl",
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name:"Creatinine Clearance (CrCl)",
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placeholder:"Enter the CrCl value in mL/min",
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type:"number",
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defaultUnit:"mL/min",
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required:true
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},
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{
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id:"dialysisStatus",
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name:"Dialysis Requirement",
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placeholder:"Whether Dialysis was done between listing and transplantation",
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type:"checkbox",
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required:true
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},
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{
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id:"gender",
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name:"Gender",
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placeholder:"Select Gender",
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type:"select",
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required:true,
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inputOptions:[
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{
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label:"Male",
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value:"male"
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},
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{
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label:"Female",
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value:"female"
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}
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]
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},
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{
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id:"causeOfHF",
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name:"Heart Failure Etiology",
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placeholder:"Cause of Heart Failure",
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type:"select",
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required:true,
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inputOptions:[
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{
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label:"Idiopathic",
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value:"idiopathic"
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},
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{
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label:"Ischemic",
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value:"ischemic"
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},
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{
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label:"Congenital",
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value:"congenital"
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},
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{
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label:"Other",
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value:"other"
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}
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]
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},
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{
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id:"recentInfection",
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name:"Recent Infection Status",
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placeholder:"Whether the patient had a recent infection",
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type:"checkbox"
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},
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{
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id:"aorticBalloonPump",
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name:"Intra-Aortic Balloon Pump",
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placeholder:"Whether Intra-Aortic Balloon Pump was implanted",
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type:"checkbox"
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},
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{
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id:"preTransplantMechVent",
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name:"Mechanical Ventilation",
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placeholder:"whether Mechanical Ventilation was done pre-transplant",
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type:"checkbox"
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},
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{
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id:"race",
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name:"Race",
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placeholder:"Select the Race of the patient",
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type:"select",
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required:true,
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inputOptions:[
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{
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label:"Caucasian",
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value:"caucasian"
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},
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{
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label:"African American",
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value:"african-american"
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},
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{
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label:"Hispanic",
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value:"hispanic"
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},
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{
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label:"Other",
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value:"other"
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}
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]
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},
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{
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id:"tempCircSupp",
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name:"Temporary Circulation Support",
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placeholder:"Whether temporary circulation support was needed (includes ECMO and e-VADs)",
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type:"checkbox"
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},
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{
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id:"VAD",
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name:"Ventricular Assist Device",
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placeholder:"Select the Ventricular Assist Device used",
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type:"select",
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required:true,
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inputOptions:[
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{
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label:"None used",
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value:"none"
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},
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{
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label:"Older-Generation Pulsatile",
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value:"older-generation"
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},
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{
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label:"Newer-Generation continuous",
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value:"newer-generation"
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},
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{
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label:"HeartMate II",
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value:"heartmateii"
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}
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]
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}
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]
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export const IMPACT:Calculator = {
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id:"impact-score",
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name:"IMPACT (Index for Mortality Prediction After Cardiac Transplantation)",
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desc:"IMPACT score is a risk assessment tool used to predict 1-year mortality risk following a Heart Transplantation based on 12 parameters (including renal function, liver function, age)",
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inputs:parameters,
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calc_func:(values : Values):number => {
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const age = values.age as number;
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const sbilirubin = values.sbilirubin as number;
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const crcl = values.crcl as number;
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const dialysisStatus = values.dialysisStatus as boolean;
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const gender = values.gender as "male" | "female";
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const causeOfHF = values.causeOfHF as "idiopathic" | "ischemic" | "congenital" | "others";
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const recentInfection = values.recentInfection as boolean;
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const aorticBalloonPump = values.aorticBalloonPump as boolean;
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const preTransplantMechVent = values.preTransplantMechVent as boolean;
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const race = values.race as "caucasian" | "african-american" | "hispanic" | "other";
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const tempCircSupp = values.tempCircSupp as boolean;
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const VAD = values.VAD as "none" | "older-generation" | "newer-generation" | "heartmateii";
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var score = 0;
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console.log(preTransplantMechVent);
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if(age > 60){
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score += 3;
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}
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if(sbilirubin > 0 && sbilirubin < 1){
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score += 0;
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}else if(sbilirubin >= 1 && sbilirubin < 2){
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score += 1;
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}else if(sbilirubin >= 2 && sbilirubin < 4){
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score += 3;
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}else{
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score += 4;
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}
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if(crcl >= 50){
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score += 0;
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}else if(crcl < 50 && crcl > 30){
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score += 2;
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}else{
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score += 5;
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}
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if(dialysisStatus){
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score += 4;
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}
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if(gender === "female"){
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score += 3;
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}
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if(causeOfHF === "idiopathic"){
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score += 0;
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}else if(causeOfHF === "ischemic"){
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score += 2;
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}else if(causeOfHF === "congenital"){
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score += 5;
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}else{
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score += 1;
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}
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if(recentInfection){
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score += 3;
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}
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if(aorticBalloonPump){
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score += 3;
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}
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if(preTransplantMechVent){
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score += 5;
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}
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if(race === "caucasian" || race === "other" || race === "hispanic"){
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score += 0;
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}else{
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score += 3;
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}
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if(tempCircSupp){
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console.log("ran temp")
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score += 7;
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}
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if(VAD === "none" || VAD === "heartmateii"){
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score += 0;
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}else if(VAD === "older-generation"){
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score += 3;
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}else{
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score += 5;
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}
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return score;
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},
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interpret_func:(score : number):Interpretation => {
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if(score >= 0 && score < 5){
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return {
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level:"none",
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message:"The rate of mortality for the patient is really low"
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}
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}else if(score >= 5 && score < 10){
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return {
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level:"low",
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message:"The rate of mortality for the patient is low"
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}
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}else if(score >= 10 && score < 15){
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return {
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level:"moderate",
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message:"The rate of mortality for the patient is moderate"
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}
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}else if(score >= 15 && score < 20){
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return {
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level:"high",
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message:"The rate of mortality for the patient is high"
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}
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}else{
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return {
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level:"severe",
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message:"The rate of mortality for the patient is severe"
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}
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}
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}
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}
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