Figure 3.

Segmented regression of ventilatorassociated pneumonia (VAP) rateper 1,000 ventilator daysfrom April 2007 toDecember 2010. Segmented 1: β10 = +6.08 p = 0.004; CI 95%: [(2.06 - 10.12)]. Segmented 1 (the slope): β11 = +2.59 p <0.001; CI 95%: [(1.47 - 3.71)]. Segmented 2: β20 = −11.24 p = 0.004; CI 95%: [(−18.60) - (−3.89)]. Segmented 2 (the slope): β21 = −2.30 p = 0.272; CI 95%: [(−6.48) - 1.88)]. Segmented 3: β30 = −2.67 p = 0.682; CI 95%: [(−15.83) - 10.47)]. Segmented 3 (the slope): β31 = +0.03 p = 0.610; CI 95%: [(−0.08) - 0.13)].

Caserta et al. BMC Infectious Diseases 2012 12:234   doi:10.1186/1471-2334-12-234
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