No reminder letters were sent as the number was regarded as sufficient for comparison of groups.
Recruitment of the host community on a 2 1 basis lowered the detectable difference to 12%% (net efficiency gain = 14%%), therefore, the 1 1 strategy was considered sufficient for comparison.
In addition, only infants born in the United States, Germany, Japan, or US territories, the locations with numbers of births sufficient for comparison, were included in this study (n = 447,691).
Although most previously reported QTL maps lack the resolution necessary for determining precise locations of QTL, most were sufficient for comparison based on common markers informed by genomic sequence data.
All previous mammograms had been routinely digitised using an Array 2,905 Laser Film Digitizer (Array Corporation Europe, Roden, the Netherlands) at a resolution of 100 μm, because an earlier study had shown this to be sufficient for comparison of previous mammograms [ 15].
The rarefaction curve of most samples approached saturation, indicating sufficient reads for comparisons by condition and gender (Fig. 1).
We found the intrasubtype variability was already high in the mid-1980s (9.6%–18.7%) yet was significantly greater for each 1997 env subtype with sufficient numbers for comparisons (A, C, D, E, F1, G).
We did not compare different disease groups since the data were not sufficient for meaningful comparisons.
By taking into account the four-year time elapsing between sweeps, national data present in two or more datasets was deemed sufficient for substantive comparisons of trends in victimisation concentration over time.
