Electrocardiographic waveforms for a plurality of candidate segments (analysis unit segments) are extracted from collected electrocardiographic waveforms and the extracted electrocardiographic waveforms for the plurality of candidate segments (analysis unit segments) are displayed on one screen. As a result, a user can determine, e.g., what candidate segment (analysis unit segment) analysis results to view while simultaneously viewing the electrocardiographic waveforms for the plurality of candidate segments (analysis unit segments) and which candidate segment to record, without any switching between screens, and as a result can perform appropriate electrocardiogram analysis using a simple operation.
