Table 1 Baseline characteristics of the study participants
Variables | Frequency | Weighted frequency* | ||||
|---|---|---|---|---|---|---|
RA group n = 238 | Non-RA group n = 25,590 | P | RA group n = 938,122 | Non-RA group n = 147,771,248 | P | |
Age, years† | 64.40 ± 13.17 | 49.87 ± 16.67 | < 0.001 | 61.39 ± 14.71 | 44.96 ± 15.96 | < 0.001 |
Female sex, n (%) | 201 (84.5) | 14,712 (57.5%) | < 0.001 | 801,097 (85.4) | 74,517,785 (50.4%) | < 0.001 |
Alcohol Intake | < 0.001 | < 0.001 | ||||
Nondrinker, n (%) | 219 (92.0) | 20,159 (78.8) | 851,124 (90.7) | 112,482,020 (76.1) | ||
Moderate drinker, n (%) | 13 (5.5) | 3560 (13.9) | 58,045 (6.2) | 24,128,683 (16.3) | ||
Heavy drinker, n (%) | 6 (2.5) | 1871 (7.3) | 28,953 (3.1) | 11,160,544 (7.6) | ||
Current smoker, n (%) | 19 (8.0) | 5265 (20.6) | < 0.001 | 79,400 (8.5) | 37,895,669 (25.6) | < 0.001 |
Degree of obesity | 0.43 | < 0.001 | ||||
Low, n (%) | 11 (4.6) | 1189 (4.6) | 50,925 (5.4) | 7,230,860 (4.9) | ||
Normal, n (%) | 142 (59.7) | 16,262 (63.5) | 552,121 (58.9) | 93,306,408 (63.1) | ||
Obese, n (%) | 85 (35.7) | 8139 (31.8) | 335,076 (35.7) | 47,233,980 (32.0) | ||
Hypertension, n (%) | 93 (39.1) | 5643 (22.1) | < 0.001 | 335,843 (35.8) | 25,000,131 (16.9) | < 0.001 |
Dyslipidemia, n (%) | 33 (13.9) | 2466(9.6) | 0.03 | 120,048 (12.8) | 11,675,583 (7.9) | < 0.001 |
Diabetes mellitus, n (%) | 42 (17.6) | 2087 (8.2) | < 0.001 | 171,300 (18.3) | 9,271,183 (6.3) | < 0.001 |
Coronary artery disease, n (%) | 17 (7.1) | 452 (1.8) | < 0.001 | 62,174 (6.6) | 1871,935 (1.3) | < 0.001 |