TABLE 4.

Titer agreement between conventional serial dilution and the PolyTiter system for 125 samples

SpecimensSite% of samples (no./total)95% CI (%)Pa
Positive (n = 90)186.67 (78/90)77.87-92.920.3963
290.00 (81/90)81.86-95.320.1153
381.11 (73/90)71.49-88.590.1857
Negative (n = 35)1100 (35/35)90.00-1000.7034
2100 (35/35)90.00-1000.7034
397.14 (34/35)85.08-99.930.2966
  • a Exact binomial P values for testing H0: P = 85% versus P < 85% for positive specimens and P = 99% versus P <99% for negative specimens.