This represented a trend towards an increased proportion of cases in the target range (z = 1.68, P = 0.09).
The incidence of reported pertussis has thereafter steadily increased over the past two decades, with an increasing proportion of cases reported among adolescents and adults [3] [6]; this resurgence means that pertussis is again a public health concern.
Azeri ethnicity comprised an increasing proportion of cases over time.
In Venezuela, this is accompanied by an increasing proportion of cases caused by P. falciparum.
Liver transplantation and haemodialysis patients have accounted for an increasing proportion of cases in recent years [ 3].
Fourth, surveillance bias among the increasing proportion of cases with pre-SAB comorbidity could explain part of the improved prognosis of SAB.
This finding is consistent with observations from recent single-site studies of an increasing proportion of cases having no known risk factors, particularly among women (1, 3 – 5 ).
Although pulmonary disease is the most common manifestation of tuberculosis overall, extrapulmonary tuberculosis accounts for a significant and increasing proportion of cases in the United States (1 ).
There has been a change in the age-related epidemiology of pertussis with an increasing proportion of cases reported among adolescent and adult patients in the United States, Canada, France and Australia, which all have longstanding vaccine-induced pertussis control [ 1].
The estimated TB incidence during the study period, 1991 2010, was relatively stable (≈20 cases/100,000 persons), and in 2010, an increasing proportion of cases (≈70%) occurred among foreign-born persons (18 – 20 ).
Hospital-based studies and outbreak reports suggest that enteric fever is a major public health problem in India, with S. Typhi as the most common etiologic agent and an increasing proportion of cases due to S. Paratyphi A [ 4- 8].
