Table 1

Percentage of DNA compared to the frozen samples
% degraded DNA n = 4
#1 #2 #3 #4 pvalue when compared to frozen samples
F 12 28 10 9
UF1h 12 24 23 34 < 0.01
UF3h 25 39 31 34 < 0.001
RT3h 17 16 12 15 0.9270
RT24h 84 44 13 15 < 0.001
RT2w 48 38 26 40 < 0.001

Statistical analysis was performed using Poisson regression model; p value < 0.05 is considered significant; #1, #2, #3, #4 correspond to subjects 1, 2, 3, 4; F = frozen; UF1h = unfrozen during 1 h; UF3h = unfrozen during 3 h; RT = room temperature; 2w = 2 weeks.

Cardona et al.

Cardona et al. BMC Microbiology 2012 12:158   doi:10.1186/1471-2180-12-158

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