Table 5. Descriptive statistics of all study participant serum samples tested for Bone Panel (osteoprotegrin (OPG), leptin, parathyroid hormone (PTH) and insulin), Matrix Metalloproteinase Panel (MMP-2, MMP-8, MMP-9) and Obesity Panel (adiponectin and C-reactive protein (CRP)).

Analyte	Insulin	Leptin	OPG	PTH	MMP-2	MMP-8	MMP-9	Adiponectin	CRP
(Unit)	(ng/mL)	(ng/mL)	(pg/mL)	(pg/mL)	(pg/mL)	(pg/mL)	(pg/mL)	(ng/mL)	(ng/mL)
Total N Tested	1320	1320	1320	1320	1320	1320	1320	1320	1320
Total N Pass QC	1320	1320	1226	1226	1320	1320	1226	1320	1226
% below	2.5	0.61	0.08	0	1.59	1.89	0.49		0.24
% above	0	0	0	0	0.61	0	1.88	0.83	13.7
N	1287	1312	1225	1226	1290	1295	1196	1307	1055
Mean(SD)	0.191(0.211)	4.24(4.02)	334.9(140.5)	32.14(43.69)	192,490(47,910)	7,910(7,776)	146,937(83,364)	19,829(11,440)	2,908(2,362)
Min	0.054	0.16	7.38	0.903	3,618	637.2	381.5	42.39	12.94
25th percentile	0.109	1.63	246.1	21.72	163,222	3,440	85,674	12,123	1,056
Median	0.14	3.16	301.1	27.92	194,419	5,690	129,839	16,984	2,238
75th percentile	0.196	5.57	396.1	35.56	222,013	9,217	188,153	24,690	4,217
Max	3.84	50.77	1,369	1,243	386,209	113,240	533,844	111,687	12,847

Total N Tested; number of participant samples sent for testing, Total N pass QC; number of participant samples after removal of failed QC batches,

% above/below; percent of samples to pass QC but fall above or below the quantifiable range of the assay based on table 3.