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Re: Cervical LengthFrom: Terry J. DuBose (tjdubose@juno.com)Sun Dec 7 19:38:56 1997
Terry J. DuBose, Little Rock, AR, USA Suzanne, ideally you would collect measurements from 50 or more patients using both EV and translabial or transperineal. If you could do all three methods on each patient, then we could do an ANOVA (Analysis of Variance). If you only had time for two measurements each, EV and one of the others, they should all be taken the same way and we could do a paired t-test. If they are at different gestational ages, that will not matter, that just gives us more opportunity to do more analysis!!! Better than candy!! The main thing is that the patients be random, or a "convenience sample" of consecutive patients. If it is hit or miss, then probably the ones in less emergency would end up getting both exams and that would lead to questions about biased. If you are willing to obtain the measurements, I will do the stats, we can both work on the explanation. You would be the primary researcher (1st author), I would just be the statistician. How does that sound? It would be neat to get a piece of published research out of Email from two people who are "worlds apart". Have we ever met? I am very poor with names. Let me know what you think. Peace, Terry
> Since I scan many OB patients and OB's from the
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