The most recent studies showed higher prevalence rates than the oldest ones, and studies with a better methodology exhibited higher lifetime prevalence rates than studies that were methodologically poor.
In conclusion, the most recent studies seem to show higher prevalence rates than the oldest ones, and studies with a better methodology tend to show higher lifetime prevalence rates than studies that are methodologically poor.
However, with 34.8% of variance accounted for, the total score of the scale used to assess the methodological quality of the studies exhibited a positive, statistically significant relationship with the prevalence rates, that is, studies with a better methodology tended to show higher lifetime prevalence rates than studies that were methodologically poor (Table 3).
Regarding the methodological quality of the studies, the studies with a better quality tended to show higher lifetime prevalence rates than studies that were methodologically poor.
8 9 10 11 Trials that have reported large effects on joint pain were often hampered by poor study quality and small sample sizes, 9 10 11 12 whereas large methodologically sound trials often found only small or no effects.
Studies reporting patient and primary care delays have often been methodologically poor and therefore inaccurate [ 10].
This review concludes that the evidence that guarantees the use of this intervention is methodologically poor.
All backed by a tired, methodologically poor inspectorial regime that defeated even the most sensitive inspectors with experience of social work.
When scoring QUADAS items [ 30] as unclear it is difficult to be certain if this indicates poor methods with the attendant consequences for bias and/or variation, or simply poor reporting of a methodologically sound study.
Their well-designed, methodologically sound study showed that this was not the case," he says.
