Table 1.

Range, 95% CI, correlation index, and ICC among colony counts, hematocytometer counts, and OD530s

SpeciesNo. of isolates testedColony count (CFU/ml [106])Hematocytometer count (CFU/ml [106])raICC (95% CI)bOD530rc
Range95% CIRange95% CIRange95% CI
A. fumigatus311.11–5.551.97–2.671.40–4.402.75–3.420.260.44 (−0.15–0.73)0.03–0.130.06–0.080.38
A. flavus281.02–3.691.70–2.261.85–3.922.48–2.940.240.35 (−0.40–0.69)0.07–0.270.16–0.190.49
A. terreus251.21–4.322.39–2.941.81–4.482.78–3.410.580.73 (0.40–0.88)0.01–0.150.05–0.080.18
A. niger160.45–4.361.72–2.861.31–4.462.19–3.270.710.80 (0.44–0.93)0.20–0.500.29–0.390.42
S. apiospermum181.01–2.731.43–1.941.04–4.101.97–2.810.760.85 (0.60–0.94)0.13–0.500.25–0.360.44
S. prolificans270.61–4.701.93–2.671.07–4.902.38–3.140.610.75 (0.47–0.89)0.15–0.530.26–0.340.42
F. solani240.55–3.841.60–2.421.22–4.792.50–3.320.570.70 (0.31–0.87)0.13–0.610.23–0.360.01
F. oxysporum131.45–4.712.24–3.421.65–3.982.43–3.400.900.94 (0.81–0.98)0.09–0.570.13–0.280.42
 Total1820.45–5.552.11–2.371.04–4.902.72–2.970.560.70 (0.60–0.78)0.01–0.610.18–0.220.008
  • a Pearson's correlation index for colony counts versus hematocytometer counts.

  • b ICC and 95% CI for colony counts versus hematocytometer counts.

  • c Correlation index for colony counts versus OD530.