Inconsistent results across studies may be primarily attributable to the small effect size of the number of working hours on PTB, different cut-off points for working hours per week, data collection at different time points during pregnancy (e.g., different trimesters), or the confounding effects of occupation and different job characteristics.
Overall, sleep duration was highly variable with significant proportions of patients and controls reporting short or long sleep duration (i.e. ≤ 6 and ≥ 8 hours per night, data not shown).> -wrap-foot> AbbrESSations: Epworthworth Sleepiness Scale, PSQI: Pittsburgh Sleep Quality Index, for other abbreviations see Table 1.
Nymphal threshold figures were used to create maps from the continuous nymphs-per-hour data.
Welding inspectors average nearly $36 per hour, equipment operators and construction foremen net about $25 per hour, welders earn roughly $22 per hour, data from the salary comparison site PayScale show.
They compiled four or five hours of data per individual, logging grooming, proximity and aggression.
The accelerometer data was considered valid only when 10 or more hours of data per day were collected for five days.
We spent up to several hours per target and developed data reduction methods to reduce the systematic noises of the telluric emissions and absorptions.
YouTube whose more than a billion users watch over a billion hours per day shows us some data, like how many times a video has been viewed, liked, or disliked.
The Universities and Colleges Employers Associationn (UCEA), says a simple headcount of individuals is misleading because some may only contribute a few hours per course, and that data from the Higher Education Statistics Agency on "atypical staff" show that they make up only 3.7% of the full-time-equivalent higher education workforce.
In fact, French workers generated more gross domestic product per hour than, among others, British, Swiss, Swedish and Austrian workers -- all of whom work more hours per week, according to data collected by the OECD.
