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“showed a trend”

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Comparison of the validity of different risk prediction instruments of cardiovascular disease The comparison of the validity of different risk prognostic instruments on the derivation cohort of one of these prognostic instruments (accuracy) showed a trend for a better calibration and a better discrimination for the prognostic instruments calculated on the bases of the derivation cohort.
Assessments tools for risk prediction of cardiovascular diseases.
GMS Health Technol Assess · 2009 · PMC3011279
Although there are no data available concerning the relationships between B-vitamins fortification of a variety of foods and the global increasing prevalence of obesity and type 2 diabetes, the notable facts are that: (1) compared with formula-feeding, breastfeeding is associated with a reduction in risk of later overweight and obesity [ 45 - 47 ]; (2) high consumption of processed meat is a strong risk factor for type 2 diabetes [ 48 ]; and (3) the global prevalence of obesity and type 2 diabetes showed a trend of spreading from the earliest fortified-countries to the latter fortified-countries, whereas the non-vitamin-fortified countries including western developed countries, such as Norway, have a low prevalence of obesity and diabetes, compared with the earliest fortified-countries, such as the US and Canada [ 49 , 50 ].
Several retrospective, prospective and meta-analysis studies failed to indicate that PPPD causes an increase in hospital stay.[ 8 , 12 , 14 , 15 ] In fact, one meta-analysis and one retrospective study showed a trend toward a shorter hospital stay with PPPD[ 9 , 11 ] TUMOR RECURRENCE AND LONG-TERM SURVIVAL The adequacy of PPPD as a cancer operation has always been questionable especially after Sharp and his colleagues had reported three cases of PPPD where the duodenal resection margin was positive for carcinoma.[ 32 ] That observation, however, was not supported by other studies.