Table 1 Data items analyzed at different study stages

Identification

Authors; year; title; data source

Screening

Relevance_1; availability

Eligibility

Publication type; empirical data; performance evaluation; spatial size; temporal size; purpose, relevance_2

Results “Study characteristics”

Year; title; discipline; journal/conference; study area country, institution

Results “Overview of selected publications on spatial crime forecasting”

Study area; scale; sampling period; months; type; sample; inference; task; spatial unit; temporal unit

Results “Spatial crime forecasting methods”

Proposed method; best proposed method; baseline method; proposed algorithm type; proposed method input, variables

Results “Considerations when analysing forecasting performance”

Evaluation metric; validation strategy