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Table 1 Baseline characteristics of the study participants by smoking status in male

From: Cigarette smoking and all-cause mortality in rural Chinese male adults: 15-year follow-up of the Anqing cohort study

Variables Smoking Status P value P value*
Never (n = 990) Former (n = 528) Current (n = 3849)
Age, y 52.3 (4.9) 52.5 (4.6) 52.0 (4.6) 0.023 0.154
SBP, mmHg 126.7 (19.8) 128.3 (21.2) 124.2 (19.6) < 0.001 < 0.001
DBP, mmHg 81.1 (12.0) 82.2 (12.6) 79.5 (11.9) < 0.001 < 0.001
BMI, kg/m2 21.5 (2.6) 22.0 (2.8) 21.0 (2.4) < 0.001 < 0.001
Laboratory results, mg/dl
 Glucose 98.5 (91.8, 105.3) 97.2 (90.7, 104.4) 96.3 (89.8, 103.5) < 0.001 < 0.001
 Total cholesterol 171.7 (150.0, 192.6) 172.9 (154.3, 195.0) 168.0 (148.5, 189.5) < 0.001 0.207
 Triglycerides 86.8 (65.5, 119.8) 89.0 (70.0, 122.7) 82.4 (62.9, 113.4) < 0.001 0.029
 High density lipoprotein 53.6 (45.2, 64.3) 54.5 (45.6, 65.0) 54.5 (45.2, 65.4) 0.384 0.072
Alcohol Status, No. (%)     < 0.001  
 Never 670 (67.7) 225 (42.6) 1947 (50.7)   
 Former 17 (1.7) 40 (7.6) 98 (2.6)   
 Current 303 (30.6) 263 (49.8) 1792 (46.7)   
Education Level (%)     < 0.001  
 Illiterate 212 (21.5) 114 (21.7) 960 (25.0)   
 Elementary school 457 (46.4) 270 (51.3) 1947 (50.8)   
 Middle school and above 316 (32.1) 142 (27.0) 928 (24.2)   
Occupation Type, farmer (%) 874 (88.4) 477 (90.5) 3540 (92.1) 0.001  
History of Hypertension, yes (%) 62 (6.3) 48 (9.1) 146 (3.8) < 0.001  
History of Diabetes, yes (%) 11 (1.1) 1 (0.2) 13 (0.3) 0.004  
  1. Abbreviations: BMI body mass index, DBP diastolic blood pressure, HDL high-density lipoprotein, SBP systolic blood pressure. For continuous variables, values are presented as mean (SD) and mean (SE). Laboratory results are presented as median (IQR). *The differences between never smokers and the current smokers was corrected by the Bonferoni method