Table 2.

Pooled meibum and reflex tear sample demographics

Sample number	Demographics *,‡	$\text{Average }{\mathrm{H}}_{2892\text{ cm}}^{-1}/{\mathrm{H}}_{2852\text{ cm}}^{-1}$	Average Slateral
1 on Tears	C61M	1.67 ± 0.06 (n = 5)	0.64 ± 0.04 (n = 5)
2 pooled on Tears	C21F, C19F, B39F, C61M	1.7 ± 0.2 (n = 3)	0.63 ± 0.11 (n = 3)
3 pooled on Tears	CM4, CM4, CF6	1.52 ± 0.07 (n = 12)	0.55 ± 0.05 (n = 12)
3 pooled on buffer	CM4, CM4, CF6	1.5 ± 0.2 (n = 12)	0.54 ± 0.11 (n = 5)
Reflex Tears	C61M (3 collections)	1.7 ± 0.1 (n = 8)	0.66 ± 0.07 (n = 8)
Meibum	Samples 1, 2 and 3	1.14 ± 0.04 (n = 3)†	0.30 ± 0.01 (n = 3)†;

^*A, Asian; C, Caucasian; B, Black; M, male; F, Female. Number is age in years.

^†Significantly different from all of the other samples, P<.001.

^‡Samples were not pooled unless indicated.