Table 1.

WE and CE Composition of Human Meibum

Reference Citation, Normal Adult Unless Indicated	Stearoyl/WE, mol/mol	Donors Sampled, N
18	0.84	1 (76 pooled)
19	0.69*	4
12	0.54	72
20	0.53	22
21	0.85	4
22	0.72	4
23	0.57	27
24	0.53*	14
25	2.7	10
26	0.46	45
Literature average, less no. 25	0.64 ± 0.05	9 Studies
Literature average, n > 11	0.53 ± 0.01	5 Studies
Current study, adults > 13 y	0.51 ± 0.02†	31
25, Dry eye	2.8	27
27, Dry eye	1.14	4
20, Obstructive MGD seborrheic MGD	0.50*, 0.53*	Small group
23, MGD	0.34	48

^*Calculated from the weight percentage of 0.76,³⁹ 1.0,³⁶ 0.76, 0.72, and 0.82³⁵ using a molecular weight (g/mol) of 734 for CE and 509 for WE.

^†Calculated from the 1- and 0.66-ppm resonances.