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Table 2 Demographics and comorbidities between ever smokers and nonsmokers

From: Demographics and medical disorders associated with smoking: a population-based study

Variables Total Non-smokers Ever smokers P-value
N (%) N (%)
Total 26,375 16,012 (60.71) 10,363 (39.29)  
Sex       < 0.001
 Men 12,779 5714 (35.69) 7065 (68.18)  
 Women 13,596 10,298 (64.31) 3298 (31.82)  
Age (y)       < 0.001
 40–54 14,096 7785 (48.62) 6311 (60.9)  
 55–64 5589 3085 (19.27) 2504 (24.16)  
 65–74 3928 3010 (18.80) 918 (8.86)  
  > 74 2762 2132 (13.32) 630 (6.08)  
Mean ± SD 56.18 ± 12.31 57.86 ± 12.92 53.59 ± 10.82 < 0.001§
Insured category       < 0.001
 Category I 9883 5911 (36.92) 3972 (38.33)  
 Category II 5718 3212 (20.06) 2506 (24.18)  
 Category III 6566 4376 (27.33) 2190 (21.13)  
 Category V 265 118 (0.74) 147 (1.42)  
 Category VI 3943 2395 (14.96) 1548 (14.94)  
Insured monthly salary (NTD)       < 0.001
  ≤ 17,280 1441 863 (5.39) 578 (5.58)  
 17,280–22,800 13,616 8611 (53.78) 5005 (48.30)  
 22,801–36,300 6150 3581 (22.36) 2569 (24.79)  
  > 36,301 5168 2957 (18.47) 2211 (21.34)  
Urbanization of residence area       < 0.001
 I 5477 3363 (21.00) 2114 (20.40)  
 II, III 12,107 7139 (44.59) 4968 (47.94)  
 IV, V 5761 3594 (22.45) 2167 (20.91)  
 VI, VII 3030 1916 (11.97) 1114 (10.75)  
Comorbidity       
COPD       0.040
 No 25,045 15,169 (94.74) 9876 (95.3)  
 Yes 1330 843 (5.26) 487 (4.70)  
Hypertension       < 0.001
 No 19,253 11,279 (70.44) 7974 (76.95)  
 Yes 7122 4733 (29.56) 2389 (23.05)  
Stroke       < 0.001
 No 24,756 14,911 (93.12) 9845 (95.00)  
 Yes 1619 1101 (6.88) 518 (5.00)  
CAD       < 0.001
 No 24,091 14,463 (90.33) 9628 (92.91)  
 Yes 2284 1549 (9.67) 735 (7.09)  
Adult preventive care       < 0.001
 No 16,999 10,166 (63.49) 6833 (65.94)  
 Yes 9376 5846 (36.51) 3530 (34.06)  
  1. Chi-square test; §Two sample Student’s t test.