Severity grades were as follows: 0 = normal or within normal limits; 1 = minimal or slight; 2 = mild; 3 = moderate; 4 = marked; 5 = severe.
These severity grades represent very severe (preproliferative) and very mild NPDR respectively and together correspond well with the outcomes used in most previous studies.
Since the TG 13 grading system was developed to differentiate severity grades of inflammation, severe inflammation would be expected in grade II and III.
For each ultrastructural outcome considered, cigarette-exposed mice (n = 10) demonstrated significantly higher severity grades, consistent with more severe injury than mice raised in air (n = 10).
Of all soldiers, 31.5 and 31.1% stationed in missions abroad were injured in 2006 and 2007 (this includes all severity grades from mild to severe).
When we added these variables to the Cox model, together with the three severity grades and all other confounders, severe changes remained an independent predictor of transition to disability or death (hazard ratio 2.36, 1.55 to 3.60).
But most studies include only injuries of lower severity (grades 1 and 2), preventing a broader interpretation.
In this protocol, we define standardized procedures for inducing CHI in mice and determine various severity grades of CHI through modulation of the weight falling height.
The chapter includes discussions on the issues of nomenclature, historical data, adverse effects, severity grades, diagnostic approaches to clarify effects, and multiple other pieces of information important to the toxicologist and toxicologic pathologist in designing studies.
Fig. 2 Differences in the severity grades of the Graded Chronic Pain Scale for the three different groups (non-TMD; TMD-pain; TMD-painfree).
This is a limitation of our study because this missing information about disease duration and the severity grades of a disease could influence the rate of persistence.
