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Table 1 Baseline characteristics of participants stratified by high-sensitivity C-reactive protein concentration quartiles

From: Associations of plasma high-sensitivity C-reactive protein concentrations with all-cause and cause-specific mortality among middle-aged and elderly individuals

Characteristics

Overall

HsCRP concentration quartiles (mg/L)

Q1 (< 0.86)

Q2 (0.86–1.74)

Q3 (174–3.59)

Q4 (> 3.59)

No. of participants

14,220

3546

3556

3551

3567

Age, years

64.9 (10.3)

64.6 (10.5)

65.3 (10.4)

65.0 (10.3)

64.8 (10.1)

Women (%)

8102 (57.0)

1825 (51.5)

1878 (52.8)

2048 (57.7)

2351 (65.9)

Race (%)

 White

10,628 (74.7)

2701 (76.2)

2752 (77.4)

2649 (74.6)

2526 (70.8)

 Black

2433 (17.1)

517 (14.6)

497 (14.0)

630 (17.7)

789 (22.1)

 Other

1159 (8.2)

328 (9.2)

307 (8.6)

272 (7.7)

252 (7.1)

Household income (%), $

  < 20,000

3489 (24.5)

741 (20.9)

772 (21.7)

907 (25.5)

1069 (30.0)

 20,001-50,000

4602 (32.4)

1077 (30.4)

1168 (32.8)

1190 (33.5)

1167 (32.7)

  > 50,000

6129 (43.1)

1728 (48.7)

1616 (45.4)

1454 (40.9)

1331 (37.3)

Education levels, years (%)

  < 12

2455 (17.3)

488 (13.8)

569 (16.0)

671 (18.9)

727 (20.4)

 12–15

7907 (55.6)

1855 (52.3)

1959 (55.1)

2020 (56.9)

2073 (58.1)

  > 15

3858 (27.1)

1203 (33.9)

1028 (28.9)

860 (24.2)

767 (21.5)

BMI, kg/m2

28.37 (5.74)

25.97 (4.61)

27.56 (4.85)

29.11 (5.44)

30.81 (6.68)

Current smoker (%)

7963 (56.0)

1835 (51.7)

1949 (54.8)

2050 (57.7)

2129 (59.7)

Current drinker (%)

5288 (37.2)

1501 (42.3)

1414 (39.8)

1279 (36.0)

1094 (30.7)

Regular exercise (%)

11,675 (82.1)

3071 (86.6)

3035 (85.3)

2873 (80.9)

2696 (75.6)

HDL-C, mg/dL

54.5 (16.1)

56.5 (16.8)

54.8 (16.1)

53.8 (16.0)

52.9 (15.4)

HbA1c, %

5.9 (1.1)

5.7 (0.9)

5. 8 (1.0)

5.9 (1.1)

6.0 (1.2)

TC, mg/dL

201.1 (42.6)

197.3 (41.3)

200.7 (42.2)

202.1 (43.2)

204.3 (43.4)

CES-D 8 score

1.5 (2.0)

1.3 (1.9)

1.4 (1.9)

1.6 (2.1)

1.7 (2.1)

Pulmonary disorder (%)

773 (5.4)

123 (3.5)

150 (4.2)

221 (6.2)

279 (7.8)

Heart disease (%)

2853 (20.1)

657 (18.5)

706 (19.9)

718 (20.2)

772 (21.6)

Stroke (%)

902 (6.3)

189 (5.3)

228 (6.4)

219 (6.2)

266 (7.5)

Psychological problems (%)

2195 (15.4)

498 (14.0)

483 (13.6)

564 (15.9)

650 (18.2)

Hypertension (%)

7627 (53.6)

1587 (44.8)

1861 (52.3)

1996 (56.2)

2183 (61.2)

Diabetes (%)

2790 (19.6)

598 (16.9)

637 (17.9)

703 (19.8)

852 (23.9)

Limitation in ADLs (%)

1031 (7.3)

228 (6.4)

234 (6.6)

248 (7.0)

321 (9.0)

  1. Values are expressed as the mean (standard deviation) or number (percentage);
  2. ADLs Activities of daily living, BMI Body mass index, CES-D 8 score The 8-question Center for Epidemiologic Studies Depression Scale, HbA1c Hemoglobin A1c, HDL-C High-density lipoprotein cholesterol, TC Total cholesterol