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Table 3 Age-adjusted prevalence and 95% confidence interval for smoking habits

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

 

Short work hours*

Reference work hours†

Long work hours‡

Total

Smoking in 2008

Number of population in 2008

100

1209

735

2044

Number of smokers in 2008 (%)

66(66.0)

670(55.4)

451(61.4)

1187 (58.1)

Age-adjusted prevalence

64.9(45.1-84.7)

54.7(50.5-59.0)

60.6(54.9-66.4)

57.6(54.3-60.9)

Continuous smoking§

Number of smokers in 2007

65

629

441

1135

Number continuously smoking (%)

56(86.2)

549(87.3)

389(88.2)

994 (87.6)

Age-adjusted prevalence

83.1(53.2-100.0)

86.8(79.3-94.4)

88.1(78.7-97.6)

87.2(81.6-92.8)

Smoking cessation∥

Number of smokers in 2007

65

629

441

1135

Number who quit smoking (%)

9(13.8)

80(12.7)

52(11.8)

141(12.4)

Age-adjusted prevalence

16.9(1.1-32.8)

13.2 (10.2-16.2)

11.9 (8.4-15.3)

12.8 (10.6-15.0)

Start smoking¶

Number of nonsmokers in 2007

35

580

294

909

Number who started smoking (%)

10(28.6)

121(20.9)

62(21.1)

193(21.2)

Age-adjusted prevalence

33.2(9.1-57.2)

20.7(17.0-24.4)

20.8(15.5-26.2)

21.3(18.2-24.3)

  1. *Weekly work hours less than 35, †Weekly work hours 35 or more, less than 52, ‡Weekly work hours more than 52, §Smokers in 2008/smokers in 2007, ∥Adults quitting smoking in 2008/smokers in 2007, ¶Smokers in 2008/non-smokers in 2007.