Table 3.

Average OPA (titer) by cohort: both visits (Visit 1 and Visit 2) combined

Cohort
Subset	Poorly-controlled diabetes mellitus (N = 14)	Well-controlled diabetes mellitus (N = 12)	Morbid obesity (N = 12)	Obese with metabolic syndrome (N = 20)	Obese without metabolic syndrome (N = 20)	Control (N = 12)
High titer sera
N, % RSD	14, 84.23	12, 54.00	12, 187.7	18, 197.2	20, 427.0	12, 89.48
Mean, median	24,968, 28,580	27,569, 30,114	13,422, 20,032	17,408, 21,465	12,036, 23,405	13,014, 13,094
95% CI	5133, 121,462	9056, 83,928	898, 200,545	1220, 248,333	329, 440,071	2406, 70,391
Medium titer sera
N, % RSD	14, 26.81	12, 85.08	12, 44.84	20, 81.37	20, 106.0	12, 25.00
Mean, median	1262, 1222	1434, 1366	1109, 1135	1204, 1089	1224, 1363	1001, 1013
95% CI	714, 2230	283, 7276	432, 2844	271, 5351	199, 7529	582, 1722
Low titer sera
N, % RSD	14, 88.09	12, 40.61	12, 26.80	20, 93.19	20, 54.46	12, 65.10
Mean, median	87.3, 66.4	69.1, 63.4	59.7, 50.0	79.8, 55.4	77.5, 66.1	77.3, 63.8
95% CI	17.0, 448.9	29.2, 163.3	33.4, 106.5	15.2, 417.4	26.7, 225.1	20.9, 286.1

CI confidence interval, OPA opsonophagocytic assay, RSD relative standard deviation