mikemoi
64 lines
2.3 KiB
TypeScript
64 lines
2.3 KiB
TypeScript
import { QuestionType } from "@/types";
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interface PHQ9CalculatorProps {
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answers: { [key: number]: string };
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questions: QuestionType[];
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}
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export const calculatePHQ9Results = ({ answers }: PHQ9CalculatorProps): any => {
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// PHQ-9 calculation logic
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let totalScore = 0;
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let suicidalIdeation = false;
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// Calculate total score (simple sum)
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Object.entries(answers).forEach(([questionId, score]) => {
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const scoreValue = parseInt(score);
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totalScore += scoreValue;
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// Check question 9 (suicidal ideation)
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if (parseInt(questionId) === 9 && scoreValue >= 1) {
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suicidalIdeation = true;
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}
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});
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// Determine depression severity level
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let severity = "minimal";
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if (totalScore >= 20) {
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severity = "severe";
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} else if (totalScore >= 15) {
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severity = "moderately_severe";
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} else if (totalScore >= 10) {
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severity = "moderate";
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} else if (totalScore >= 5) {
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severity = "mild";
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}
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// Analyze item scores
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const itemAnalysis = Object.entries(answers).map(([questionId, score]) => ({
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questionId: parseInt(questionId),
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score: parseInt(score),
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isHigh: parseInt(score) >= 2 // Scores of 2 or above are considered high score items
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}));
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const highScoreItems = itemAnalysis.filter(item => item.isHigh);
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// Determine possibility of major depressive episode (at least 5 symptoms, including at least one of the first two)
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const coreSymptoms = itemAnalysis.slice(0, 2).filter(item => item.score >= 2);
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const otherSymptoms = itemAnalysis.slice(2).filter(item => item.score >= 2);
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const majorDepressionCriteria = coreSymptoms.length >= 1 && (coreSymptoms.length + otherSymptoms.length) >= 5;
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return {
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totalScore,
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severity,
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suicidalIdeation,
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itemAnalysis,
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highScoreItemCount: highScoreItems.length,
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majorDepressionCriteria,
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factorScores: {}, // PHQ-9 is a single-factor scale
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positiveItemCount: highScoreItems.length,
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positiveItemAverage: highScoreItems.length > 0
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? highScoreItems.reduce((sum, item) => sum + item.score, 0) / highScoreItems.length
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: 0,
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isSevere: severity === "severe" || severity === "moderately_severe" || suicidalIdeation
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};
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}; |