Tools

Add a finding for this diagnosis

Add prevalence for this diagnosis

Switch to display mode

Switch to sensitivity and specificity

Sort findings by Tag

Sort findings by Differential Diagnosis

Jump To

Good Positive and Negative Likelihood Ratios

Good Negative Likelihood Ratio

Good Positive Likelihood Ratio

Poorly Diagnostic Findings

Menopause: Likelihood Ratios

Introduction: Two good articles:

Bastian, et al. JAMA 2003 http://jama.ama-assn.org/cgi/content/full/289/7/895

and J Fam Pract. 2005 Nov;54(11):1000-2. PMID: 16266610

[Edit Diagnosis] [Merge dx] [Add prevalence]

Tags: Endocrine Gynecologic Tag this Diagnosis.

The likelihood ratios of findings for Menopause are listed below. See the left navigation bar to change the display.

Pre-Test Probability (Prevalence): %.	Post-Test Probability (Predictive Value): %.	Switch to display mode.
Note that calculating probabilities from more than one** finding is inherently inaccurate because findings are not independent. (For example, using two positive findings that share a common pathogenesis is likely to overestimate the true probability.)

Good Positive and Negative Likelihood Ratios
Finding	Result	+LR	-LR
[ + ] Elevated FSH	+ 0 -	4.9	0.4
>20 or >24 IU/l, depending on study Study: J Fam Pract. 2005 Nov;54(11):1000-2. PMID: 16266610
[ + ] Menstrual Irregularity	+ 0 -	3.5	0.4
within last 12 months Study: J Fam Pract. 2005 Nov;54(11):1000-2. PMID: 16266610

Good Negative Likelihood Ratio
Finding	Result	+LR	-LR
[ + ] Patient Thinks She is Perimenopausal	+ 0 -	1.7	0.3
Study: J Fam Pract. 2005 Nov;54(11):1000-2. PMID: 16266610