Legend: PA = physical activity, ns = not significant; only one study, only one small study, only one study an wide confidence interval, unclear risk of bias at study level, unclear risk of bias at study level + only 35% got the intervention, unclear risk of bias at study level + incomplete data.
However, it is unclear whether this interval is always appropriate.
Their vaccination dates were not given, and it remains unclear whether the interval was sufficient to acquire immune protection.
Also, it is unclear at what interval or intensity of engagement needs to occur in order to achieve a desired change.
Legend: PA = physical activity; only one study, only one study and wide confidence interval, unclear risk of bias at study level, only one small study, high risk of bias at study level.
About half of the marine invertebrate genera went extinct at this time; whether land plants or terrestrial vertebrates suffered a similar extinction during this interval is unclear.
An effect is unclear if its confidence interval includes both substantial increases and decreases [ 41].
In a similar way, the exact mechanism for abnormalities of QTc interval remains unclear.
Guidelines for repeat echocardiographic intervals remain unclear.
The odds, and corresponding 95% confidence intervals, of unclear allocation concealment, by funding source and trial outcome, are also presented.
In this paper, we review how researchers can look at very similar data yet have completely different conclusions based purely on an over-reliance of statistical significance and an unclear understanding of confidence intervals.
