Fig 1.
Flow-chart of patient inclusion and attrition in the study.
Table 1.
Demographics, comorbidity and variables during hospitalization for acute COVID-19.
Mean (SD) unless specified otherwise.
Table 2.
Chest CT severity scores at 3 months and comparison between scores at 3 and 12 months in those with follow-up chest CT.
Median (range).
Fig 2.
Individual transfers of CT finding on ordinal 0–12 scale (12 most severe), from 3 (3m) to 12 months (12m) after hospital admission for COVID-19.
The lines are unweighted; hence, lines for several patients may be superimposed and do not reflect frequencies (n = 124). Red line connects median score at 3 and 12 months. The panels are: a. Ground-glass opacities, b. Parenchymal bands, c. Mosaicism, d. Reticular pattern grade 1.
Fig 3.
Change in CT findings on ordinal Chest CT severity (CSS), from 0 (none) to 12 (most severe) from 3 to 12 months after hospital admission for COVID-19, stratified according to WHO disease severity during the hospital stay (3 = No oxygen treatment, 4 = Supplementary oxygen, 5–7 = High-flow oxygen/non-invasive or invasive ventilation/ECMO) (n = 124).
The panels are: a. Ground-glass opacities, b. Parenchymal bands, c. Mosaicism, d. Reticular pattern grade 1.
Fig 4.
Individual transfers of CT finding on ordinal 0–12 scale (12 most severe), from 3 (3m) to 12 months (12m) after hospital admission for COVID-19, stratified according to WHO disease severity during the hospital stay (3 = No oxygen treatment, 4 = Supplementary oxygen, 5–7 = High-flow oxygen/non-invasive or invasive ventilation/ECMO).
The lines are unweighted; hence, lines for several patients may be superimposed and do not reflect frequencies (n = 124). The panels are: a. Ground-glass opacities, b. Parenchymal bands, c. Mosaicism, d. Reticular pattern grade 1.
Fig 5.
Change in CT scores on abbreviated Chest CT severity (aCSS) scale from 3 (3m) to 12 months (12m).
Scale categories are: 0 (none), 1 (mild), 2 (moderate), 3 (severe). Widths of flows represent frequencies. The panels are: a. Ground-glass opacities, b. Parenchymal bands, c. Mosaicism, d. Reticular pattern grade 1.
Table 3.
Odd ratios for being in a higher category of abbreviated chest CT severity dimension score (0–3 scale).
Multivariable mixed effects ordinal regression analysis of radiological scores. (n = 248 CT scans; 124 patients).