Fig. 4From: Association of ambient particulate matter with hospital admissions, length of hospital stay, and hospital costs due to cardiovascular disease: time-series analysis based on data from the Shanghai Medical Insurance System from 2016 to 2019Relationship of PM levels at lag0 with daily hospital admissions, LOS, and hospital costs due to CVD. The dashed vertical lines (0 µg/m3 for PM1, 15 µg/m3 for PM2.5 and 45 µg/m3 for PM10) are the target values. LOS length of hospital stay, PM particulate matter, CNY Chinese YuanBack to article page