/** Biological sex */
export type Sex = 'male' | 'female';
/** Growth indicator type */
export type Indicator = 'weight-for-age' | 'length-height-for-age' | 'bmi-for-age' | 'head-circumference-for-age' | 'weight-for-length' | 'weight-for-height';
/** Growth chart reference set */
export type ChartSet = 'who-standard' | 'down-syndrome';
/** A single row from an LMS table */
export interface LmsRow {
    /** Age in days (0-5y tables) or months (5-19y tables), or length/height in cm (weight-for-length/height) */
    age: number;
    /** Box-Cox power (L) */
    L: number;
    /** Median (M) */
    M: number;
    /** Coefficient of variation (S) */
    S: number;
}
/** Input for a single z-score calculation */
export interface ZScoreInput {
    indicator: Indicator;
    sex: Sex;
    /** Age in days (for age-based indicators) */
    ageInDays?: number;
    /** Length or height in cm (for weight-for-length/height) */
    lengthHeight?: number;
    /** The measured value */
    measurement: number;
    /** Chart set to use (defaults to 'who-standard') */
    chartSet?: ChartSet;
    /** Gestational age in weeks (for prematurity correction) */
    gestationalAgeWeeks?: number;
}
/** Input for a full assessment */
export interface AssessmentInput {
    sex: Sex;
    dateOfBirth: Date;
    dateOfMeasurement: Date;
    weight?: number;
    lengthHeight?: number;
    headCircumference?: number;
    /** Gestational age in weeks at birth (< 37 = premature) */
    gestationalAgeWeeks?: number;
    /** Chart set to use for calculations (defaults to 'who-standard') */
    chartSet?: ChartSet;
}
/** Result of a z-score calculation */
export interface ZScoreResult {
    indicator: Indicator;
    zScore: number;
    percentile: number;
}
/** Nutritional classification severity */
export type ClassificationSeverity = 'very-low' | 'low' | 'adequate' | 'risk' | 'high' | 'very-high';
/** Nutritional classification for a single indicator */
export interface Classification {
    indicator: Indicator;
    severity: ClassificationSeverity;
    label: string;
}
/** Age information */
export interface AgeResult {
    /** Chronological age in days */
    chronologicalDays: number;
    /** Corrected age in days (equals chronological if not premature) */
    correctedDays: number;
    /** Whether prematurity correction was applied */
    isCorrected: boolean;
    /** Formatted chronological age */
    formatted: string;
    /** Formatted corrected age (if different from chronological) */
    formattedCorrected?: string;
}
/** Full assessment result */
export interface AssessmentResult {
    age: AgeResult;
    results: ZScoreResult[];
    classifications: Classification[];
}
/** Supported locales */
export type Locale = 'pt-BR' | 'en' | 'es';
/** i18n translation strings */
export interface I18nStrings {
    locale: Locale;
    indicators: Record<Indicator, string>;
    classifications: Record<ClassificationSeverity, string>;
    age: {
        years: (n: number) => string;
        months: (n: number) => string;
        days: (n: number) => string;
        and: string;
    };
}
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