A system for monitoring a health status of a subject, wherein the system comprises: a signal interface adapted to receive input data relating to a plurality of event occurrences for the subject, the input data comprising, for each event occurrence, information representative of at least one of: activity of the subject; and care activity provided to the subject; a processing unit adapted to determine a trend in a health parameter of the subject based on the input data; a trend analysis unit adapted to detect one or more irregularities in the determined trend, and the system being characterized by comprising: a monitor unit adapted to classify each of the one or more irregularities as at least one of: an outlier to the trend; and a changepoint in the trend and to determine a health status of the subject based on the irregularity classification of each of the one or more irregularities wherein the health status of the subject is representative of at least one of: a risk of an adverse event occurrence; and a time until care activity requirements change, and wherein the monitor unit is adapted to determine, based on the irregularity classification of each of the one or more irregularities, at least one of: a value of risk of an adverse event occurrence; and a value of time until care activity requirements change. a signal interface adapted to receive input data relating to a plurality of event occurrences for the subject, the input data comprising, for each event occurrence, information representative of at least one of: activity of the subject; and care activity provided to the subject; a processing unit adapted to determine a trend in a health parameter of the subject based on the input data; a trend analysis unit adapted to detect one or more irregularities in the determined trend, and the system being characterized by comprising: a monitor unit adapted to classify each of the one or more irregularities as at least one of: an outlier to the trend; and a changepoint in the trend and to determine a health status of the subject based on the irregularity classification of each of the one or more irregularities wherein the health status of the subject is representative of at least one of: a risk of an adverse event occurrence; and a time until care activity requirements change, and wherein the monitor unit is adapted to determine, based on the irregularity classification of each of the one or more irregularities, at least one of: a value of risk of an adverse event occurrence; and a value of time until care activity requirements change. a monitor unit adapted to classify each of the one or more irregularities as at least one of: an outlier to the trend; and a changepoint in the trend and to determine a health status of the subject based on the irregularity classification of each of the one or more irregularities wherein the health status of the subject is representative of at least one of: a risk of an adverse event occurrence; and a time until care activity requirements change, and wherein the monitor unit is adapted to determine, based on the irregularity classification of each of the one or more irregularities, at least one of: a value of risk of an adverse event occurrence; and a value of time until care activity requirements change.