Table 3: Increase in frequency of C. difficile GDH/toxin B EIA positivity stratified by multiple or single samples.

– GDH-/toxin B – GDH+/toxin B –
[P<0.001]		 GDH+/toxin B+
[P=0.206]
Replicates Frequency % Frequency % RRR 95% CI Frequency % RRR 95% CI
1 61.6 13.6 1 ref. 24.7 1 ref.
2 51.8 26.8 2.36 1.54 - 3.60 21.4 1.03 0.69 - 1.54
3 38.9 31.9 3.74 2.07 - 6.76 29.2 1.88 1.04 - 3.38
≥4 52.1 23.3 2.04 0.95 - 4.37 24.1 1.18 0.69 - 2.04

-, negative; +, positive ref., reference