Table 4 Baseline characteristics of study participants, by presence of elevated depressive symptoms

  No

54923 (94.1 %)

8457 (86.2 %)

63380 (93.0 %)

42582 (95.0 %)

6557 (87.4 %)

49139 (93.9 %)

  Yes

3440 (5.9 %)

1349 (13.8 %)

4789 (7.0 %)

2238 (5.0 %)

949 (12.6 %)

3187 (6.1 %)

Age^a

  Mean(SD)

63.7 (7.2)

62.9 (7.5)

63.6 (7.3)

62.9 (6.9)

61.8 (7.1)

62.8 (6.9)

  Median(IQR)

64.0 (11.0)

63.0 (12.0)

64.0 (11.0)

63.0 (11.0)

61.0 (11.0)

63.0 (11.0)

Ethnicity^a

  American Indian/Alaskan Native

172 (0.3 %)

55 (0.6 %)

227 (0.3 %)

151 (0.3 %)

38 (0.5 %)

189 (0.4 %)

  Asian or Pacific Islander

1839 (3.2 %)

214 (2.2 %)

2053 (3.0 %)

1124 (2.5 %)

105 (1.4 %)

1229 (2.4 %)

  Black/African American

3490 (6.0 %)

705 (7.2 %)

4195 (6.2 %)

3607 (8.1 %)

778 (10.4 %)

4385 (8.4 %)

  Hispanic/Latino

1478 (2.5 %)

513 (5.2 %)

1991 (2.9 %)

1313 (2.9 %)

483 (6.4 %)

1796 (3.4 %)

  White

50798 (87 %)

8196 (83.6 %)

58994 (86.5 %)

38158 (85.1 %)

6009 (80.1 %)

44167 (84.4 %)

Other

586 (1.0 %)

123 (1.3 %)

709 (1.0 %)

467 (1.0 %)

93 (1.2 %)

560 (1.1 %)

Education^a

  <= High school

1957 (3.4 %)

641 (6.6 %)

2598 (3.8 %)

1837 (4.1 %)

609 (8.2 %)

2446 (4.7 %)

  High school or GED

8784 (15.2 %)

1733 (17.8 %)

10517 (15.5 %)

8074 (18.1 %)

1504 (20.2 %)

9578 (18.4 %)

  > = High school, but less than 4 years of college

20643 (35.6 %)

3709 (38.2 %)

24352 (36.0 %)

17315 (38.9 %)

3031 (40.7 %)

20346 (39.1 %)

  4 or more years of college

26557 (45.8 %)

3631 (37.4 %)

30188 (44.6 %)

17330 (38.9 %)

2295 (30.9 %)

19625 (37.7 %)

BMI^a

  Mean(SD)

26.7 (5.4)

27.6 (6.0)

26.8 (5.5)

28.4 (5.6)

29.3 (6.0)

28.5 (5.7)

  Median(IQR)

25.6 (6.3)

26.5 (7.1)

25.7 (6.4)

27.5 (7.1)

28.4 (7.7)

27.6 (7.2)

  Mean(SD)

210.1 (186.6)

170.8 (175.7)

204.5 (185.6)

165.4 (168.7)

139.7 (165.5)

161.7 (168.5)

  Median(IQR)

170.0 (225.0)

127.5 (220.0)

165.0 (225.0)

125.0 (220.0)

85.0 (200.0)

120.0 (215.0)

  Mean(SD)

1529.7 (588.9)

1593.2 (679.5)

1538.8 (603.2)

1710.7 (666.7)

1796.8 (762.7)

1723.0 (682.0)

  Median(IQR)

1461.9 (719.7)

1493.9 (817.1)

1465.4 (733.4)

1618.0 (815.0)

1671.6 (951.6)

1623.7 (833.7)

HRT use ever^a

  Never

16498 (28.8 %)

2663 (27.7 %)

19161 (28.6 %)

15945 (37.2 %)

2510 (34.9 %)

18455 (36.9 %)

  Former

11590 (20.2 %)

2209 (22.9 %)

13799 (20.6 %)

10805 (25.2 %)

2077 (28.9 %)

12882 (25.7 %)

  Current

29228 (51.0 %)

4758 (49.4 %)

33986 (50.8 %)

16099 (37.6 %)

2602 (36.2 %)

18701 (37.4 %)

  No

38718 (66.6 %)

6052 (62.0 %)

44770 (65.9 %)

28802 (64.5 %)

4502 (60.3 %)

33304 (63.9 %)

  Yes

17225 (29.6 %)

3161 (32.4 %)

20386 (30.0 %)

13867 (31.1 %)

2515 (33.7 %)

16382 (31.4 %)

Smoking status^a

  Never Smoked

29984 (52.0 %)

4818 (49.7 %)

34802 (51.6 %)

23382 (52.7 %)

3594 (48.4 %)

26976 (52.1 %)

  Past Smoker

24751 (42.9 %)

4141 (42.7 %)

28892 (42.9 %)

18012 (40.6 %)

3048 (41.1 %)

21060 (40.6 %)

  Current Smoker

2971 (5.1 %)

738 (7.6 %)

3709 (5.5 %)

3004 (6.8 %)

776 (10.5 %)

3780 (7.3 %)

  No

55407 (94.9%)

9138 (93.2%)

64545 (94.7%)

41399 (92.4%)

6756 (90.0%)

48155 (92.0%)

  Yes

2956 (5.1%)

668 (6.8%)

3624 (5.3%)

3421 (7.6%)

750 (10.0%)

4171 (8.0%)

  Mean(SD)

7.7 (1.5)

7.6 (1.6)

7.7 (1.5)

8.0 (1.7)

7.9 (1.8)

8.0 (1.7)

  Median(IQR)

7.9 (2.0)

7.9 (2.0)

7.9 (2.0)

8.0 (1.7)

8.0 (1.9)

8.0 (1.8)

  Don’t Know

2212 (3.8 %)

555 (5.7 %)

2767 (4.1 %)

1975 (4.4 %)

452 (6.1 %)

2427 (4.7 %)