Low or non-existent levels of literacy have deterred people from taking training programmes or applying for alternative jobs.
However, the actual level of the value co-creation practices still remained rather non-existent, and the interviewees' perceptions and understanding of value co-creation varied significantly.
The potential anti-oxidative protective effect of fumarates may depend on the pre-existent expression levels of Nrf2 in cells or tissues.
The finding of a higher prevalence of overweight/obesity and risk for metabolic disease among adolescent girls, and almost non-existent levels in adolescent boys, has been documented in other South African studies (19, 41), and in other LMICs (43).
However, recent studies have shown that despite the numbers of circulating Tfh cells were higher in the patients with pre-existent DSA than those without pre-existent DSA, the levels of circulating Tfh cells were not different among the patients with or without de-novo DSA [ 35, 36].
Although no definitive estimates exist as to the prevalence of street and working children, the decade of the 1990s saw a dramatic increase in their numbers, from a virtually non-existent level in the 1980s.
The presence of eosinophils in COPD may be associated with co-existent asthma and levels of eosinophil basic proteins have been found to be elevated as well [38].
Thus, the theory of two levels of existents implies a philosophical perspective that is best described as reductionism.
However, higher levels of pre-existent HADS anxiety symptoms predicted a stronger subsequent reduction in state anxiety at 3.5 and 6 hours post LPS injection.
CIP (5 μg) resistance was almost non-existent in the all CCP levels of the isolates.
The correlations between the levels of pre-existent disease activity markers and those of serum CXCL10 or CXCL13 in AOSD patients are shown in Table 2. Serum CXCL10 levels correlated with ferritin levels (r = 0.444, p = 0.005), aspartate transaminase (AST) levels (r = 0.412, p = 0.009), and systemic scores (r = 0.421, p = 0.008).
