But it was only in April 2005 that the prototype A380 first flew and not until October 2007 that the first production models entered commercial service with Singapore Airlines.
OpenSDE data: Entity Export was used to generate a conventional relational database from the row modeled data entered with OpenSDE.
Because of the limited number of RA patients who developed a new plaque, we evaluated the combined effect of traditional CV risk by introducing into the models (enter method) HeartScore together with (one at a time) RA-related parameters (RF positivity, functional class and stage of RA at baseline and biologic and nonbiologic DMARDs).
The second model entered five variables with established clinical relevance: age, presence of hypertension, type of AF, LAD, and EF.
All explanatory analysis applied conventional multiple linear logistic regression models (method enter), with presence/absence of drug utilization as the dependent variable.
Multivariate analyses were performed using the Cox-proportional hazards model entering CDK with other significant variables (defined as those with P<0.1 on univariate analysis).
Using the CHAID model, entering only patients with albumin 33 g l−1 or platelet count <400.000 mm−3 would reduce the early death rate to 4.5%, while excluding <25%.
In both regression analyses we fitted a crude model (univariate, i.e., without any adjustment); an age, sex, and hospital source model; and a multivariate-adjusted model entering all variables with p < 0.1 in the bivariate analysis.
Second, we performed a multivariate Cox regression model, entering significant variables sequentially, with checking and possible removing variables that became non-significant ('forward stepwise' method).
However, patients in the model were assumed to enter with an age of 75 years.
