The extended version of the SDQ, which is embedded in the DAWBA, also covers severity of difficulties, chronicity, overall distress, social and scholastic impairment, and burden to others (e.g. 'how long have these difficulties been present'do'do the difficulties upset or distress your child', 'do the difficulties interfere with your child's everyday life in the following areas') [ 9].
The severity of difficulties related to the disorder as perceived by the patients may therefore be considered a good indicator reflecting QoL, beyond the symptoms assessed on the various scales based on the diagnostic items from the DSM-IV [e.g., [ 21, 22]] This patient perspective may be compared with the perspectives of parents and physicians.
The answers were dichotomised and compared as follows: the severity of difficulties in falling asleep at least weekly rather than less than weekly; poor quality of sleep or worse compared with good or better sleep; and time slept less than required compared with time slept equal to or more than required.
Dillon et al. (2012) have consequently argued that rather than aiming for diagnosis, clinicians should focus instead on applying a systematic, hierarchically structured assessment procedure to carefully document the range and severity of difficulties experienced by an individual, as well as, where possible, the specific underlying deficit.
However, if the answer was "yes", the frequency and severity of this difficulty had to be assessed.
Reports also suggest that the most difficult problematic OAG that there is in terms of severity of disease, difficulty in treating it and as a cause of blindness comes from West Africa [ 2, 3, 8].
The second hypothesis focuses on indirect effects of PDC on the same five outcomes, with the potential benefits being conditional or dependent on severity of, or difficulty with, veterans' impairments.
For the cluster that reported high symptomatology at time 1, the decreases in the severity of "headaches," "difficulty breathing," "unrefreshing sleep," "sleeping more than usual," "sudden mood changes," and "feeling depressed or blue" were significant after Bonferroni correction (means ± SDs presented in Table 1).
