SDNN

The SDNN value is sent as part of the final results.

The application can receive the SDNN result by implementing the OnFinalResults callback interface:

TypeScript

import { 
    VitalSigns,
    VitalSignsResults,
    SDNNSign,
    ConfidenceLevel,
} from '@biosensesignal/web-sdk';

const onFinalResults = useCallback((vitalSignsResults: VitalSignsResults) => {
    const results = vitalSignsResults.results as VitalSigns;
    const sdnn = results.sdnn as SDNNSign;
    if (sdnn?.value != null) {
        const confidenceLevel = sdnn.confidenceLevel as ConfidenceLevel;
        console.log(`SDNN: ${sdnn.value}}`);
        console.log(`Confidence Level: ${confidenceLevel}`);
    }
}, []);

For general information about vital signs see the Vital Signs and Health Indicators Information Document.

For a list of supported indicators and their required measurement durations, see the Indicators Technical Information page.