Each of these four subtypes was scored on a severity scale from 0 to 4 (0, absent; 1, present for less than half of the observation time; 2, present for more than half of the observation time; 3, continually present but suppressible by outer stimuli; 4, continually present and not suppressible).
Metcalfe et al. grouped their observations on age at baseline, implying that on average more than half of the observation years in a woman included as belonging to one age group, might have been recorded, when she had become older and actually belonged to an older age group.
On the other hand, Tsuji et al. (2011) reported that the V p/V s value is approximately 2 at the toe of the hanging wall accretionary prism landward of the trough axis in the Nankai Trough, which is approximately half of our observation in the Japan Trench.
The increase in LnRMSSD was small and persistent, and reached significance in the latter half of the observation period.
In the seven studies recruiting patients in the first half of the observation period before December 2005 [ 10, 28– 31, 51, 69], 222 (87 %) of 255 patients were microbiologically cured.
However, there were no statistically significant age-specific trends during the first half of the observation period, in neither absolute nor relative inequalities (Table 1).
In the first half of the observation window, men of this age group were 40 60% likely to be a temporary migrant, while in the second half of the observation period they were 50 70% likely to meet the criteria for being a temporary migrant.
The curve flattens considerably from a dozen half-days of observation, where the ratio (a/ N) is about 0.016.
Considering the characteristic of class-imbalanced data, we also proposed classification-based partition for cross validation, as well as leaving half of majority observations out and leaving one minority observation out (LHO-LOO) for subsampling.
