f8-time-to-pregnancy {ctfepi}sealed case file

Time to Pregnancy

Case F8, First BreathsPerinatal and Reproductive Epidemiologyscene 4hard400 pts

Case

The birth registry shows a paradox among low birth weight babies whose mothers smoke.

What this scene will ask

Cycles to pregnancy with delayed entry into the study.

Planned flag: fecundability ratio for the exposure, 3 dp; per cycle probability of conception in the unexposed, 4 dp; number of left truncated attempts.

Status

[#] Sealed. This scene opens when it is written and passes review. Nothing on CTFEpi expires, so there is no rush.