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Table 1 Characteristics of study population

From: Associations between estradiol and testosterone and depressive symptom scores of the Patient Health Questionnaire-9 in ovariectomized women: a population-based analysis of NHANES data

Variables n = 548
PHQ-9 score 4.522 ± 0.316
Demographics
 Age
   <  = 60 166 (33.64%)
   > 60 382 (66.36%)
 Poverty income ratioa
  Not poor 412 (81.50%)
  Poor 94 (11.98%)
 Education level
  Below high school 110 (11.95%)
  High school or above 438 (88.05%)
 Married/live with partner
  No 270 (39.83%)
  Yes 278 (60.17%)
 Serum estradiol, pg/ml 16.175 ± 1.981
 Serum testosterone, ng/dL 16.507 ± 1.328
 History of estrogen use
  No 18 (4.92%)
  Yes 267 (55.42%)
 Duration of estrogen use (years) 10.697 ± 1.108
Comorbidities
 Diabetes
  No 411 (78.82%)
  Yes 137 (21.18%)
 CVD
  No 439 (81.07%)
  Yes 109 (18.93%)
 Cancer history
  No 409 (71.61%)
  Yes 139 (28.39%)
 Chronic respiratory tract disease
  No 431 (76.40%)
  Yes 117 (23.60%)
 Arthritis
  No 206 (34.49%)
  Yes 342 (65.51%)
  1. Continuous variables are presented as mean ± standard error (SE); categorical variables are presented as counts (weighted percentage)
  2. Numbers may not add up to 100% due to missing value CVD cardiovascular disease
  3. aPoverty income ratio for not poor was defined as ≥ 1, and for poor was defined as < 1