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. Author manuscript; available in PMC: 2012 Apr 1.
Published in final edited form as: Optom Vis Sci. 2011 Apr;88(4):525–533. doi: 10.1097/OPX.0b013e318214ac0f

Table 1.

Outcome measures as a function of collection device. Means (µg) and standard deviations are shown for each assay: total lipid, cholesterol, and inorganic phosphate. Ranges and medians are displayed in the adjacent column for each assay. Collection devices are identified across the horizontal dimension.


Collection Device
MICROCAPILLAR
N = 120
DACRON SWAB
N = 40
CYTOLOGY MICROBRUSH
N = 40
SPATULAS
N = 40
Mean (µg) Range &
Median
Mean (µg) Range &
Median
Mean (µg) Range &
Median
Mean (µg) Range &
Median
Total Lipid 0.63 ±0.81 0.00-6.44
0.41
5.14 ±2.07 1.37-10.08
4.91
1.80 ±1.85 0.00-10.99
1.37
2.12 ±1.90 0.10-8.95
1.67
Cholesterol 0.33 ±0.40 0.00-3.83
0.28
0.70 ±0.31 0.11-1.49
0.71
0.68 ±0.43 0.06-2.60
0.59
1.42 ±0.66 0.60-3.44
1.37
Inorganic Phosphates 0.05 ±0.11 0.00-0.57
0.00
0.06 ±0.18 0.00-0.97
0.00
0.07 ±0.09 0.00-0.39
0.01
0.03 ±0.04 0.00-0.14
0.00