In particular, the MIDAS items for missed days of work or school and for missed days of household work were similar to the corresponding diary-based estimates of missed work or school [17].
The MIDAS items for missed days of work or school (mean 0.96, median 0) and for missed days of household work (mean 3.64, median 2.0) were similar to the corresponding diary-based estimates of missed work or school (mean 1.23, median 0) and of missed household work (mean 3.93, median 2.01).
Responses to MIDAS questions about number of days where productivity was reduced by half or more in work (mean 3.77, median 2.00) and in household work (mean 3.92, median 2.00) significantly overestimated the corresponding diary-based measures for work (mean 2.94, median 1.06) and household work (mean 2.22, median 0.98).
Recently, new techniques have been used to collect time-location data, such as the use of portable global positioning system (GPS) devices to track people's time-location or commuting patterns with or without corresponding participant diary information [ 15- 22].
After the fourth night of actigraphy the research assistant returned to the woman's home to collect the actigraphs and corresponding sleep diaries and to ask the mother to complete a short self administered questionnaire.
For example, we have no way of knowing whether participants failed to report intrusions or whether they really had their intrusions on the specific day corresponding to the diary page they used to report that intrusion.
An obvious change of the location in the measurement file without a corresponding entry in the diary indicates that a relevant entry in the activity diary has been forgotten.
The strength of the associations between the diary and corresponding interview subscales varied considerably (Table 2).
It may also have included African religions involving ancestral beliefs and animistic rites dTest for trend Figure 1 includes the coital diary pictures corresponding to male condom use, vaginal cleansing and sex during menstruation, and shows frequencies of these practices.
The main findings in this blinded controlled study were that migraineurs reported more sleep related symptoms than controls while the corresponding differences in sleep diaries and PSG sleep quality variables were much smaller.
For statistical analysis, time points (4-h intervals) corresponding to the headache diaries were used.
