Table 1.

Human meibum sample information

	Age/sex/ethnicity
Group 1	3/M/C, 4/F/C, 6/M/C, 8/F/C, 10/M/C, 12/F/C, 13/F/C
Meibum below 14 years
Group 2	17/M/C, 19/M/C, 19/F/C, 20/F/A, 20/M/A, 21/M/C, 21/M/C, 23/M/C, 23/M/C, 24/M/C, 26/M/A, 32/M/C
Meibum 14–33 years
Group 3	52/F/C, 54/M/C, 62/M/C, 65/M/C, 67/M/C, 80/F/B, 83/M/C, 88/M/C
Meibum above 33 years

The age is in years. M = Male; F = female; A = Asian; B = Black; C = Caucasian.