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. Author manuscript; available in PMC: 2012 Oct 1.
Published in final edited form as: Am J Obstet Gynecol. 2011 May 14;205(4):353.e1–353.e8. doi: 10.1016/j.ajog.2011.05.014

Table 3.

Adjusted mean age at menopause for REGARDS interview respondents with natural menopause.

Age (years)
(n= 10,198c)
Region Age p-value
 South 47.5 --
 Northeast 48.4 <0.0001
 Midwest 48.2 0.0001
 West 48.0 0.02

Race
 White 48.1 --
 Black 48.0 0.69

Age
 <55 45.9 --
 55-64 48.5 <0.0001
 65-74 48.9 <0.0001
 ≥75 48.9 <0.0001

Parity
 0 47.6 --
 1 47.9 0.33
 ≥ 2 48.6 <0.0001

Annual income
 < $20,000 47.7 --
 $20,000-34,999 48.0 0.04
 $35,000-74,999 48.4 0.0005
 ≥$75,000 48.2 0.03
 Refused 47.9 0.23

Education level
 < HS 47.4 --
 Graduated HS 48.1 0.0007
 Some collegea 48.2 0.0002
 Graduated college 48.6 <0.0001

Self-reported history of CVDb
 No 48.2 --
 Yes 47.9 0.04

Physical activity per week
 none 47.8 --
 1-3 48.2 0.0007
 ≥4 48.1 0.01

Smoking
 Never 48.7 --
 Current 47.1 <0.0001
 Past 48.3 0.005
a

Indicates some college, trade school or technical classes taken

b

Reported personal history of myocardial infarction, stroke, TIA, carotid endarterectomy, coronary intervention, repair of aortic aneurysm and/or peripheral artery intervention

c

Indicates total participants with complete data for all covariates considered in analysis