Table 1.
Demographic characteristics of the psychometric validation study population (n = 210)
| Characteristics | Control (n = 48) |
Non-SS KCS* (n = 130) |
SS* (n = 32) |
|---|---|---|---|
| Sex (n (%)) | |||
| Male | 13 (27) | 27 (21) | 3 (9) |
| Female | 35 (73) | 103 (79) | 29 (91) |
| Age (Year) | |||
| Mean | 39.2 | 55.2 | 58.3 |
| Standard deviation | 11.8 | 15.3 | 11.8 |
| Range | 20.0-66.0 | 22.0-89.0 | 34.0-80.0 |
| Ethnicity (n (%)) | |||
| Caucasian | 34 (71) | 106 (82) | 31 (97) |
| African-American | 6 (13) | 12 (9) | 1 (3) |
| Hispanic/Spanish-American | 5 (10) | 5 (4) | 0 (0) |
| Asian/Oriental/Pacific Islands | 1 (2) | 6 (5) | 0 (0) |
| Other | 2 (4) | 1 (1) | 0 (0) |
| Highest level of education (n (%)) | |||
| High school diploma or less | 9 (19) | 23 (18) | 6 (19) |
| Some college | 13 (27) | 47 (36) | 8 (25) |
| College degree | 15 (31) | 29 (22) | 11 (34) |
| Graduate/postgraduate | 8 (17) | 31 (24) | 5 (16) |
| Other | 3 (6) | 0 (0) | 2 (6) |
* Non-SS KCS, Non Sjögren keratoconjunctivitis sicca; SS, Sjögren Syndrome [13]