How to Distinguish Patients with pSS among Individuals with Dryness without Invasive Diagnostic Studies

Table 4

Distribution of time to final diagnosis of pSS depending on symptoms.

Clinical presentation	Time required for final diagnosis of pSS	Standard deviation (SD)
Abnormal chest HRCT	7	6
Major salivary gland involvement	10	9
Lymphadenopathy	9	6
Skin lesions	11	10
Peripheral arthritis	9	9