Methods of monitoring of salt intake in countries participating in the survey, sorted by method and national income grouping^*.

Italicised countries conducted research studies only, not national monitoring. *References to results included where available. **Spot urine analysis has also been conducted in Costa Rica, but for iodine and fluoride only. ***In addition, a 24 h urine analysis was conducted in 2010 to obtain preliminary data of total salt intake in Malaysia.斜体标识的国家仅开展研究类工作，未进行国家级监测工作。 * 如有可获取的研究结果，则会引用相关结果。 ** 哥斯达黎加（Costa Rica）亦开展了随机尿分析，但仅针对碘与氟两种指标。 *** 马来西亚（Malaysia）于2010年开展了24小时尿分析，以获取总盐摄入量的初步数据。