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Table 1 General characteristics of the study subjects N (%)

From: Relationship between Work Hours and Smoking Behaviors in Korean Male Wage Workers

Variables Weekly work hours Total p-value
Short* Reference† Long‡
Total 100(4.9) 1209(59.2) 735(36.0) 2044  
Age (years)
25-34 7(7.0) 353(29.2) 220(29.9) 580 <.0001
35-44 24(24.0) 414(34.2) 259(35.2) 697  
45-54 39(39.0) 305(25.2) 173(23.5) 517  
55-64 30(30.0) 137(11.3) 83(11.3) 250  
Marital status
Married 68(68.0) 934(77.3) 545(74.2) 1547 0.056
Unmarried 32(32.0) 275(22.8) 190(25.9) 497  
Education
≤Junior high school 46(46.0) 122(10.2) 110(15.0) 278 <.0001
High school 27(27.0) 372(30.8) 305(41.5) 704  
≥College 27(27.0) 715(59.1) 320(43.5) 1062  
Occupation
Non-manual 22(22.0) 666(55.1) 248(33.7) 936 <.0001
Manual 78(78.0) 543(44.9) 487(66.3) 1108  
Employment type
Precarious 84(84.0) 254(21.0) 130(17.7) 468 <.0001
Non-precarious 16(16.0) 955(79.0) 605(82.3) 1576  
Tenure (years) (Mean±S.D) 7.1±8.6 8.7±8.1 6.4±6.4   <.0001
Shift work
Yes 1(1.0) 108(8.9) 151(20.5) 260 <.0001
No 99(99.0) 1101(91.1) 584(79.5) 1784  
Job satisfaction      
Low 35(35.0) 102(8.4) 102(13.9) 239 <.0001
Average 44(44.0) 550(45.5) 376(51.2) 970  
High 21(21.0) 557(46.1) 257(35.0) 835  
Smoking in 2007
Yes 65(65.0) 629(52.0) 441(60.0) 1135 0.001
No 35(35.0) 580(48.0) 294(40.0) 909  
Smoking in 2008
Yes 66(66.0) 670(55.4) 451(61.4) 1187 0.019
No 34(34.0) 539(44.6) 284(38.6) 857  
Alcohol drinking
Yes 87(87.0) 1023(84.6) 627(85.3) 1737 0.776
No 13(13.0) 186(15.4) 108(14.7) 307  
  1. *Weekly work hours less than 35, †Weekly work hours 35 or more, less than 52, ‡Weekly work hours more than 52.