Because we collected data from each participant only once, the seasonal variations were based on participation date, and not individual variations.
Demographers say the change is irreversible and reflects long-term changes, such as higher rates of education and labour force participation dating back to the 1960s.
Compared to controls, cases were slightly older, had a longer period of fecundity (from menarche to menopause or participation date, whichever came earlier) and fewer months of breast feeding; they had less education, lower family income, and smoked more but had almost identical duration of employment (Table 3).
What do we have to show for our engagement and participation to date?
Eighty-three percent of the participants were female — AngelHack's highest female participation to date (and possibly of any hackathon, ever).
To minimise attrition, prior to follow-up data collection, all participating services in intervention groups will receive letters thanking them for their participation to date and reminding them of the follow-up data collection.
To minimise attrition, prior to follow-up data collection, services will receive letters thanking them for their participation to date and reminding them that they will be telephoned again to participate in follow-up data collection.
The difference in average date of participation (controls) vs. average date of diagnosis (cases), which determined when exposure assessment ceased, was less than 6 months (Table 3). 1 cumulative exposure on transformed ratings: 1 (low), 2 (moderate), 3 (high) → 0, 10 10, as rating-year.
"To date engagement and participation has been far away, remote physically, with big successful campaigns.
Vital status was determined using the NHANES III Linked Mortality Public-use File, which provides vital status follow-up data in person-months from the date of the NHANES III survey participation through the date of death or 12/31/2006.
