Factors examined as potential confounders or effect modifiers included age (at breast cancer diagnosis for cases, at time of study enrollment for controls), age at first birth, number of children, birth of a son, history of breastfeeding, miscarriage, abortion, oral contraceptive use, smoking status, age at menarche and
number of cell equivalents tested for detection of FMc.
The total
number of cell equivalents tested for detection of FMc was higher in the controls than in the breast cancer cases (mean 8.2 × 104 (95 % CI 7.2 — 9.2 × 104) in controls versus 5.6 × 104 (95 % CI 4.9 — 6.3 × 104) in cases).
Not exact matches
The fact that introduction
of a small
number of proteins into adult human
cells could produce
cells that are
equivalent to embryo stem
cells takes us into an entirely new era
of stem
cell biology.
Lpar2 - / - CD4 + T
cells were labeled with 5 μM CMTMR (Thermo Fisher Scientific), mixed with an
equivalent number of WT CD4 + T
cells, and injected into recipient mice (5 x 106
cells / mouse); 15 — 25 hr later, the mice were anesthetized using isoflurane admixed with O2.
The study determined that the most common distraction for drivers was using a
cell phone while driving, and the
number of crashes while dialing a
number was roughly
equivalent with the
number of crashes while the driver was talking or listening.