Figure 2.

Target countries included in a systematic review of studies investigating working equid lameness in low- to middle-income countries, according to country income level at the time of data collection (bubble colour) and number of publications researching the country (bubble size and annotated number). Larger bubbles represent a higher number of publications. Where country income level classification was different for studies collecting data in different years, the income level was labelled as ‘Low to Lower-middle’ or ‘Lower-middle to Upper-middle’ accordingly. Figure created in Datawrapper [37].