Table 3.

Overview of studies on CXR imaging and related findings.

References	No. of cases	Findings
Jacobi et al. (2020) [59]	–	Irregular, patchy, hazy, reticular and widespread GGOs
Lomoro et al. (2020) [66]	58	Consolidation and hazy increased opacity
Wong et al. (2020) [67]	64	GGOs, consolidation and pleural effusion
Zhang et al. (2020) [53]	645	GGOs and consolidation
Yoon et al. (2020) [68]	9	Parenchymal abnormalities, consolidation, GGOs, single nodular opacity and patchy opacities
Wang et al. (2020) [60]	–	It is better to use CXR due to lower radiation, especially for children.
Shi et al. (2020) [229]	1	This study uses imaging data for patient's improvement monitoring in a case with COVID-19.
Wu and Li (2020) [238]	229	In case of lack of access to CT imaging, mobile X-rays can be used for critically ill COVID-19 patients.
Vancheri et al. (2020) [25]	240	The most frequent lesions in COVID-19 patients are GGO and reticular alteration, while consolidation gradually increased over time.
Weinstock et al. (2020) [69]	636	Interstitial changes, GGO and consolidation
Yasin and Gouda (2020) [70]	350	consolidation opacities, reticular interstitial thickening, GGO, pulmonary nodules and pleural effusion
Smith et al. (2020) [61]	366	Bilateral patchy or confluent, bandlike GGO or consolidation
Rousan et al. (2020) [239]	88	The most common finding is peripheral GGO affecting the lower lobes.
Cozzi et al. (2020) [64]	234	Reticular–nodular opacities, GGO, consolidation, vascular congestion signs, cardiomegaly, nodules, pleural effusion and pneumothorax
Balbi et al. (2021) [240]	340	GGO, consolidation, GGO and consolidation, pleural effusion and nodules
Al-Smadi (2021) [241]	56	GGO, consolidation and mixed pattern