Utility of autoimmune serology testing in the assessment of uncharacterized interstitial lung disease: a large retrospective cohort review

Table 6 Frequency of Positive Screening Serology and CTD-ILD Diagnoses stratified by older age group

	Age ≤ 60 years(161 patients)	Age 61–79 years(380 patients)	Age ≥ 80 years(64 patients)	P value
Serology positive, N (%)	54 (33.5)	137 (36.1)	22 (34.4)	0.846
CTD-ILD diagnosis, N (%)^a	18 (11.2)	24 (6.3)	0	0.009

Abbreviations: CTD = connective tissue disease
^apercentages are number of CTD diagnoses over total number of pts. evaluated in that age group (for example in column 1, 18 CTD diagnoses over 161 patients evaluated for age group ≤60 years) = 11.1%)

ISSN: 1465-993X