The pooled incidence density
of VAP ranges from two to 16 episodes per 1000 days on ventilator.
The overall incidence density
of uncommon Candida spp.
Asthma incidence density
before hire was calculated by adding the number of adult-onset asthma diagnoses that occurred before hire and dividing by the sum of participants' years at risk before hire.
Summary statistics and incidence density
rate were calculated.
of hospital acquired BSIs per 1000 patient-days and Central line-associated bloodstream infections (CLABSI) per 1000 central line-days were calculated.
Four matched controls per case were selected by incidence density
sampling, and rate ratios (RR) were estimated by conditional logistic regression.
The incidence density
for the children who were caries-free at the beginning of the study was 35 new cases per 1000 person years with this highest incidence density
found in children who were 3 years old.
8) CW13 = Craven Week under-13; GK16 = Grant Khomo under-16; AW18 = Academy Week under-18; CW18 = Craven Week under-18; M = match day; R = rest day; IID = injury incidence density
(injuries/1 000 hours exposure).
sampling was used to identify up to four control patients for each case patient.
We used incidence density
sampling to randomly select 20 controls per case from among the noncases for a total of 9,220 controls (Richardson 2004).
The primary outcome was treatment incidence density
NI incidence density
rate was calculated as being the number of NI/patient days, and then multiplied by 1 000.