Research Article
Mediation Role of C-Reactive Protein on the Association between Smoking Quantity and Type 2 Diabetes in Current Chinese Smokers
Table 1
Comparison of social-demographic characteristics between type 2 diabetes and non-type 2 diabetes current smokers.
| | | Type 2 diabetes | | | | Controls (%) | Cases (%) |
| | Age (years) | | | | | | <30 | 44 (5.0) | 0 (0.0) | 37.00 | <0.001 | | 30~39 | 103 (11.7) | 3 (3.0) | | 40~49 | 220 (24.9) | 26 (25.7) | | 50~59 | 297 (33.6) | 25 (24.8) | | 60~69 | 180 (20.4) | 32 (31.7) | | ≥70 | 39 (4.4) | 15 (14.9) | | Gender | | | | | | Male | 824 (93.3) | 93 (92.1) | 0.22 | 0.640 | | Female | 59 (6.7) | 8 (7.9) | | Occupation | | | | | | Person in charge | 109 (12.3) | 8 (7.9) | 9.88 | 0.079 | | Technician | 129 (14.6) | 11 (10.9) | | Service personnel | 122 (13.8) | 19 (18.8) | | Operator | 204 (23.1) | 21 (20.8) | | Retired personnel | 206 (23.3) | 34 (33.7) | | Jobless | 113 (12.8) | 8 (7.9) | | Education | | | | | | Elementary school or lower | 175 (19.8) | 21 (20.8) | 0.81 | 0.847 | | Junior middle school | 310 (35.1) | 31 (30.7) | | Senior middle school or vocational secondary school | 288 (32.6) | 35 (34.7) | | College or above | 110 (12.5) | 14 (13.9) | | Family monthly income (yuan) | | | | | | <1000 | 117 (13.3) | 14 (13.9) | 2.23 | 0.693 | | 1000~2999 | 301 (34.1) | 29 (28.7) | | 3000~4999 | 242 (27.4) | 27 (26.7) | | ≥5000 | 132 (14.9) | 20 (19.8) | | Do not know or refuse to answer | 91 (10.3) | 11 (10.9) | | Alcohol consumption | | | | | | No | 579 (65.6) | 63 (62.4) | 0.939 | 0.625 | | Yes | 261 (29.6) | 31 (30.7) | | Former drinker | 43 (4.9) | 7 (6.9) | | Exercise | | | | | | No | 225 (25.5) | 28 (27.7) | 0.24 | 0.625 | | Yes | 658 (74.5) | 73 (72.3) | | Daily cigarette consumption (cigarettes per day) | | | | | | ≤10 | 393 (44.5) | 45 (44.6) | 6.88 | 0.032 | | 11~20 | 417 (47.2) | 40 (39.6) | | >20 | 73 (8.3) | 16 (15.8) | | Family history of diabetes | | | | | | No | 762 (86.3) | 78 (77.2) | 6.00 | 0.015 | | Yes | 121 (13.7) | 23 (22.8) |
| | | M ± SD | M ± SD | | |
| | Inflammatory marker | | | | | | CRP (g/mL) | | | 2.79 | 0.005 |
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Mann-Whitney nonparametric test.
Type 2 DM: type 2 diabetes.
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