Asthma status scoring method and system with confidence ratings

• US 20100099998A1
• Filed: 10/22/2008
• Published: 04/22/2010
• Est. Priority Date: 10/22/2008
• Status: Active Grant

• Current Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Original Assignee: Sharp Kabushiki Kaisha (Hon Hai Precision Industry Co., Ltd.)
• Inventors: Ayyagari, Deepak, Colquitt, Nhedti
• Granted Patent: US 8,231,541 B2
• Time in Patent Office: Days
• US Class Current: 600/529
• CPC Class Codes: A61B 2560/0242 adapted to measure environmental factors, e.g. temperature, pollution
• CPC Class Codes: A61B 5/0205 Simultaneously evaluating both cardiovascular conditions and different types of body conditions, e.g. heart and respiratory condition
• CPC Class Codes: A61B 5/024 Detecting, measuring or recording pulse rate or heart rate A61B5/0205, A61B5/021 take precedence
• CPC Class Codes: A61B 5/0816 Measuring devices for examining respiratory frequency measuring frequency of electric signals G01R23/00
• CPC Class Codes: A61B 5/145 Measuring characteristics of blood in vivo, e.g. gas concentration, pH value; Measuring characteristics of body fluids or tissues, e.g. interstitial fluid, cerebral tissuemeasuring of blood pressure or blood flow A61B5/02; non-radiation detecting or locating of foreign bodies in blood A61B5/06
• CPC Class Codes: A61B 7/003 Detecting lung or respiration noise

Abstract

A method and system for assessing the health status of a patient, such as the asthma status of a patient, provides an asthma status score and a confidence rating indicative of the score'"'"'s reliability using continuous real-time data. In some embodiments, the assessment comprises a multidimensional analysis in which asthma status scores and respective confidence ratings are generated for multiple individual asthma health dimensions as well as a summary asthma health dimension indicative of overall asthma health. In some embodiments, the individual dimensions include an environmental trigger dimension based on sensor-based environmental data, a physiological burden dimension based on sensor-based physiological data, a medication adherence dimension based on patient diary data and a perceived symptom dimension based on patient diary data.

Claims

1. An assessment system for assessing the asthma status of a patient, comprising:

a data processing system;

a data capture system communicatively coupled with the data processing system; and

an asthma data output system communicatively coupled with the data processing system, wherein the data processing system receives sensor-based data from the data capture system, generates an asthma status score and a confidence rating for the asthma status score based at least in part on sensor-based data and outputs the asthma status score and the confidence rating to the asthma data output system.

2. The assessment system of claim 1, wherein confidence rating is based at least in part on a comparison of an actual number of parameters used to generate the confidence rating with a maximum number of parameters.

3. The assessment system of claim 1, wherein confidence rating is based at least in part on a comparison of an actual change rate for the asthma status score with a maximum change rate for the asthma status score.

4. The assessment system of claim 1, wherein the data capture system comprises an environmental data capture system wherefrom the data processing system receives sensor-based environmental data and generates the asthma status score based at least in part on sensor-based environmental data.

5. The assessment system of claim 1, wherein the data capture system comprises a physiological data capture system wherefrom the data processing system receives sensor-based physiological data and generates the asthma status score based at least in part on the sensor-based physiological data.

6. The assessment system of claim 1, further comprising a user input system communicatively coupled with the data processing system, wherein the data processing system receives from the user input system patient diary data input by the patient and generates the asthma status score based at least in part on the patient diary data.

7. The assessment system of claim 1, wherein the data processing system generates a plurality of asthma status scores and respective confidence ratings comprising at least one individual asthma status score and individual confidence rating and a summary asthma status score and summary confidence rating.

8. The assessment system of claim 1, wherein the asthma status score is indicative of environmental asthma triggers.

9. The assessment system of claim 1, wherein the asthma status score is indicative of asthma burden on the physiology of the patient.

10. The assessment system of claim 1, wherein the asthma status score is indicative of medication adherence of the patient.

11. The assessment system of claim 1, wherein the asthma status score is indicative of lung function change rate and direction of the patient.

12. The assessment system of claim 4, wherein the environmental data capture system continuously receives environmental sensor data and derives the sensor-based environmental data from the environmental sensor data.

13. The assessment system of claim 5, wherein the physiological data capture system continuously receives physiological sensor data and derives the sensor-based physiological data from the physiological sensor data.

14. The assessment system of claim 1, wherein the data processing system periodically updates the asthma status score and the confidence rating.

15. The assessment system of claim 5, wherein the sensor-based physiological data include at least respiratory data, heart data and saturation of oxygen in arterial blood flow (SpO2) data.

16. A method for assessing the asthma status of a patient, comprising the steps of:

receiving sensor-based data;

generating an asthma status score and an indicator of reliability of the asthma status score based at least in part on sensor-based data; and

displaying the asthma status score and the indicator.

17. The method of claim 16, wherein the generating step comprises generating a plurality of asthma status scores and respective indicators of reliability of the asthma status scores comprising at least one individual asthma status score and individual indicator of reliability and a summary asthma status score and summary indicator of reliability.

18. The method of claim 17, wherein the at least one individual asthma status score comprises a plurality of individual asthma status scores including a first score indicative of environmental asthma triggers, a second score indicative of asthma burden on the physiology of the patient and a third score indicative of medication adherence of the patient.

19. An assessment system for assessing the health status of a patient, comprising:

a data processing system;

a data capture system communicatively coupled with the data processing system; and

a health data output system communicatively coupled with the data processing system, wherein the data processing system receives sensor-based data from the data capture system, generates a health status score and a confidence rating for the health status score based at least in part on sensor-based data and outputs the health status score and the confidence ratings to the health data output system.

20. The assessment system of claim 19, wherein the data processing system generates a plurality of health status scores and respective confidence ratings for the health status scores comprising at least one individual asthma status score and individual confidence rating and a summary asthma status score and summary confidence rating.