But for many years inconclusive studies meant that any link between food and acne was at best unproven, and at worse a myth.
Many were convinced of their benefit by a small and inconclusive study published more than a decade ago indicating the groups could substantially prolong patients' lives.
The association between dietary fiber intake and gastric cancer risk has been investigated by many studies, with inconclusive results.
Dissatisfaction has been linked to pre-surgical pain [ 16], poorer mental health [ 13, 15], poorer outcomes [ 10, 14], complications requiring admission [ 16], and unmet expectations [ 7, 9, 16, 17], but results are inconclusive; many studies showed that pre-surgery variables have a minimal influence on post-surgery satisfaction [ 10, 18, 19].
The associations between dietary factors and gastric cancer risk have been analysed by many studies, but with inconclusive results.
Many were inconclusive, but a very large study, published in July in The Lancet, a London-based medical journal, found that the length of time women in the industrialized world nursed their children was indeed associated with a significantly lower average risk of cancer.
Many of these studies are inconclusive due to the small number of samples and/or markers used.
It has been argued however that many of these studies could be inconclusive due to artifacts related to genotyping errors or inadequate design.
Many epidemiological studies have investigated the association of the phase II COMT variant (Met/Met) with BC, but the results are inconclusive [ 20, 21].
However, no consensus exists at present regarding the use of any of these for clinical decisions as many studies have reported diverging, conflicting or inconclusive results.
