The bHPVv double-blind, randomized placebo-controlled trial conducted in China by Zhu et al. described no-differences in the incidence rates of death in vaccine group and in the control group [82].
Several studies describe no differences in postoperative complications after an esophagectomy in overweight or obese patients compared to patients with a BMI of <25 kg/m.
While Ratcliffe et al. describe no differences in time intervals in those with or without family history of cancer [ 36], other authors have suggested that prior experience of the disease through relatives or friends could result in putting medical consultation off [ 10, 37].
They described no difference in the number of patients with urticaria, headache, adverse events, or withdrawal due to adverse events.
Lastly, Lindahl et al. (2006) described no difference in the outcome of PFF between cemented and cementless stems; thus, both types of fixation were included.
One study commented on staged patellar re-surfacing for persistent patellofemoral symptoms, and described no differences between both groups.
Several studies described no differences in postoperative complications after oesophagectomy (Morgan et al, 2007; Scipione et al, 2007; Melis et al, 2011; Blom et al, 2012), whereas some reported that a higher incidence of severe complications were noted in patients with higher BMI (Healy et al, 2007; Grotenhuis et al, 2010; Hayashi et al, 2010).
However, in the same report, Lanzrein et al. describe no significant differences between AD subjects and controls regarding serum and CSF levels of interleukin-1 beta (IL-1 β), IL-1 receptor antagonist (IL-1ra), interleukin-6 (IL-6), tumor necrosis factor-alpha (TNF- α), the soluble TNF receptors type I and II (sTNFR 1 and 2), and the acute phase protein alpha1-antichymotrypsin (α1-ACT).
In contrast, Table 5 describes no significant difference over the years in discussing alcohol use (compared to 1975).
Research studies have described delayed colonic transit in the elderly, 36– 38 whereas others have described no significant difference in colonic transit between the elderly and younger patients.
