The log odds are the logarithm of the odds ratio
, in other words, the coefficient (normalized by the standard error).
The relative risk r and the odds ratio
9 satisfy one of the following conditions:
The odds ratio
and 95% confidence intervals for males and female smokers were 1.15(CI=1.14-3.04) and 2.80(CI=0.98- 7.72), respectively.
For example, using the same logic, one might argue that the ratio of the percentage of cases exposed to the percentage of controls exposed in an (incidence) case-control study (the exposure ratio) is more intelligible and easier to communicate than is the (exposure) odds ratio
. Moreover, it could be argued that there is good evidence for this given the confusion about the odds ratio
, and what it is estimating in an (incidence) case-control study, that stretches back for nearly 50 years (Pearce 1993).
Men who went to emergency rooms or unspecified facility types had significantly higher odds of being infected than those who saw primary care providers (odds ratios
, 2.0 and 3.1, respectively); men who typically went to hospital clinics had a reduced risk (0.5).
Senior Writer Odds Ratios
for Acute Endometritis Women with gonorrhea alone 4.2 Women with gonorrhea and HSV-2 6.0 Source: Dr.
Additionally, an association was found between any SSRI exposure and having an infant with tetralogy of Fallot (adjusted odds ratio
Because no randomized trial data were available, the investigators used odds ratios
as an approximation of relative risk.
Among females, a high level of depressive symptoms at baseline was associated with a significantly elevated likelihood of engaging in risky behavior between interviews (odds ratio
, 1.5), but not with the odds of reporting any particular behavior.
An odds ratio
of 6.4 and a prevalence of 2.8 per 10,000 births would produce an absolute risk for omphalocele of 0.18% among exposed women.
In a review of California Medicaid pharmacy claims and medical claims for 4,325 outpatients treated for schizophrenia from 1999 to 2001, gaps in treatment as small as 1-10 days resulted in increased hospitalization risk (odds ratio
The odds ratio
of being infected with those organisms in association with urinary symptoms was 5.9; the odds ratio
of an infection associated with vaginal symptoms was only 0.3.