Methods Inf Med 2016; 55(03): 223-233
DOI: 10.3414/ME15-01-0142
Original Articles
Schattauer GmbH

Sequence Mining of Comorbid Neurodevelopmental Disorders Using the SPADE Algorithm[*]

Inna Pimus
1   Department of Information Systems, University of Haifa, Haifa, Israel
,
Mor Peleg
1   Department of Information Systems, University of Haifa, Haifa, Israel
,
Mitchell Schertz
2   Institute for Child Development, Meuhedet, North, Haifa, Israel
› Author Affiliations
Further Information

Publication History

received: 27 October 2015

accepted: 21 February 2015

Publication Date:
08 January 2018 (online)

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Summary

Objectives: Understanding the progression of comorbid neurodevelopmental disorders (NDD) during different critical time periods may contribute to our comprehension of the underlying pathophysiology of NDDs. The objective of our study was to identify frequent temporal sequences of developmental diagnoses in noisy patient data.

Methods: We used a data set of 2810 patients, documenting NDD diagnoses given to them by an NDD expert at a child developmental center during multiple visits at different ages. Extensive preprocessing steps were developed in order to allow the data set to be processed by an efficient sequence mining algorithm (SPADE).

Results: The discovered sequences were validated by cross validation for 10 iterations; all correlation coefficients for support, con -fidence and lift measures were above 0.75 and their proportions were similar. No significant differences between the distributions of sequences were found using KolmogorovSmirnov test.

Conclusions: We have demonstrated the feasibility of using the SPADE algorithm for discovery of valid temporal sequences of co-morbid disorders in children with NDDs. The identification of such sequences would be beneficial from clinical and research perspectives. Moreover, these sequences could serve as features for developing a full-fledged temporal predictive model.

* Supplementary material published on our web-site http://dx.doi.org/10.3414/ME15-01-0142