Table 2

Statistical comparison of the clone libraries.
Samples
 ΔCXY Libshuff
 p XY Libshuff
 ΔCYX Libshuff
 p YX Libshuff
 p Unifrac
Comparison of seasons:




1W vs. 1Sp
 7.302
 0.001*
 1.269
 0.001*
 < 0.001*
1W vs. 1Su
 5.877
 0.001*
 1.141
 0.001*
 < 0.001*
1W vs. 1F
 1.649
 0.001*
 0.841
 0.001*
 < 0.001*
1Sp vs. 1Su
 0.055
 0.763
 0.103
 0.416
 0.320
1Sp vs. 1F
 0.082
 0.446
 0.265
 0.032
 0.01*
1Su vs. 1F
 0.066
 0.179
 0.078
 0.150
 < 0.001*






2W vs. 2Sp
 0.106
 0.086
 0.219
 0.002*
 0.180
2W vs. 2Su
 0.387
 0.001*
 0.066
 0.398
 0.02
2W vs. 2F
 0.033
 0.303
 0.103
 0.024*
 0.02
2Sp vs. 2Su
 0.234
 0.013*
 0.047
 0.576
 0.07
2Sp vs. 2F
 0.150
 0.010*
 0.142
 0.014*
 0.09
2Su vs. 2F
 0.034
 0.725
 0.317
 0.002*
 0.04






Comparison of buildings:




1W vs. 2W
 5.989
 0.001*
 0.407
 0.001*
 < 0.001*
1Sp vs. 2Sp
 0.067
 0.598
 0.080
 0.383
 0.16
1Su vs. 2Su
 1.177
 0.001*
 0.050
 0.613
 0.01*
1F vs. 2F
 0.128
 0.019*
 0.050
 0.255
 < 0.001*

Comparisons using web-based Libshuff and Unifrac significance analyses were conducted between the individual buildings and the four seasons. ΔCXY – and ΔCYX – values represent the difference between the two libraries calculated by Libshuff. Libraries that are significantly different with a confidence of 95% are marked with*. 1, Building 1; 2, Building 2; W, winter; Sp, spring; Su, summer; F, fall.

Rintala et al. BMC Microbiology 2008 8:56   doi:10.1186/1471-2180-8-56