Compositional and structural analysis of engineered stones and inorganic particles in silicotic nodules of exposed workers

Table 5 Radiological classification and progression and their correspondent averaged Si and Al EDX detected percentages

Patients	CRX ILO classification*	Main HRCT findings*	CRX ILO classification^†	Main HRCT findings^‡	Si (%) ^ξ	Al (%) ^ξ	Progression rate per Year (PRY)
S1	SS 2/3 q/t	A,B,F	FMP A	A,B,E,D,F	0.07	0.0525	0.2727273
S2	PMF B	A,B,E	FMP C	A,B,E	0.595	0.165	0.0909091
S3	SS 2/2 r/q	A,B, D	FMP B	A,B,D,E	1.1325	0.3075	0.4545455
S4	SS 2/3 r/q	A,B,C	FMP C	A,B,D,E	1.1025	0.3075	0.4545455
S5	SS 3/2 r/q	A	SS 3/3 r/q	A,B	0.05	0.0875	0.0909091
S6	SS 1/2 q/q	A,B,C	SS 1/2 q/q	A,B	0.085	0.1725	0
S7	SS 2/2 q/t	A, B,	SS 2/2 q/t	A, B,	0.2775	0.0675	0

^*At the time of lung biopsy. ^† Last follow-up visit. ^‡Last HRCT. ^ξAveraged percentages of the EDX measurements at 4 regions (A to D) of each sample, obtained from the data in Table 4
SS Simple Silicosis, PMF Progressive Massive Fibrosis, A small nodular (round) opacities, B hilar and mediastinal lymphadenopathy, C ground-glass opacities, D Calcified lymphadenopathy, E Large opacities, F Interlobular septal thickening

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