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Table 2 General characteristics of male and female by work schedule

From: The relationship between night work and involuntary weight change: data from the fifth Korea National Health and Nutrition Examination Survey (KNHANES 2010–2012)

 

Male

Female

Variable

Day work

Night work

Day work

Night work

 

na(%b)

na(%b)

na(%b)

na(%b)

Total

2609320(100.0)

351022(100.0)

1034295(100.0)

82664(100.0)

Age(years)c

 20–29

468087(17.9)

61363(17.5)

261607(25.3)

30275(36.6)

 30–39

875124(33.5)

105154(30.0)

232659(22.5)

17512(21.2)

 40–49

738135(28.3)

56519(16.1)

253412(24.5)

20175(24.4)

 50–59

404736(15.5)

53848(15.3)

185802(18.0)

10543(12.8)

 60–69

123239(4.7)

74138(21.1)

100814(9.7)

4160(5.0)

Educationc

  ≤ Middle school

422070(16.2)

71419(20.3)

277763(26.9)

11010(13.3)

 High school

945666(36.2)

174676(49.8)

342680(33.1)

37714(45.6)

  ≥ University

1241584(47.6)

104927(29.9)

413852(40.0)

33940(41.1)

Income

 1st quartile

178888(6.9)

17518(5.0)

128559(12.4)

3138(3.8)

 2nd quartile

835447(32.0)

91892(26.2)

253419(24.5)

23706(28.7)

 3rd quartile

902113(34.6)

141123(40.2)

370488(35.8)

31426(38.0)

 4th quartile

692873(26.6)

100489(28.6)

281829(27.2)

24394(29.5)

Marital status

 Single

538421(20.6)

91746(26.1)

274416(26.5)

29757(36.0)

 Married

1988519(76.2)

254890(72.6)

645458(62.4)

42232(51.1)

 Others

82380(3.2)

4386(1.2)

114422(11.1)

10674(12.9)

Alcohol drinkingd

 None or social

1592309(61.0)

240384(68.5)

944300(91.3)

60675(73.4)

 Moderate or heavy

1017012(39.0)

110638(31.5)

89995(8.7)

21989(26.6)

Smoking

 None or ex-smoker

1111880(42.6)

177806(50.7)

964964(93.3)

67411(81.5)

 Current smoker

1497440(57.4)

173216(49.3)

69331(6.7)

15253(18.5)

Physical activity

 Light

2174814(83.3)

309607(88.2)

910681(88.0)

66952(81.0)

 Moderate

147376(5.6)

8406(2.4)

82729(8.0)

4405(5.3)

 Vigorous

287130(11.0)

33010(9.4)

40886(4.0)

11307(13.7)

Type of jobc

 Non-manual

1212165(46.5)

45354(12.9)

487665(47.1)

26078(31.5)

 Manual

1397155(53.5)

305668(87.1)

546630(52.9)

56586(68.5)

Working hours per weekc

  ≤ 48

1471445(56.4)

117002(33.3)

734250(71.0)

57386(69.4)

  > 48

1137876(43.6)

234020(66.7)

300045(29.0)

25278(30.6)

Weight change

 No weight change

1938500(74.3)

281489(80.2)

764035(73.9)

58759(71.1)

 Weight loss

259215(9.9)

19554(5.6)

96299(9.3)

5971(7.2)

 Weight gain

411605(15.8)

49978(14.2)

173961(16.8)

17934(21.7)

  1. aestimated population size
  2. bcolumn and estimated percentage
  3. csignificantly different between day work and night work in male subjects (p < 0.05)
  4. dsignificantly different between day work and night work in female subjects (p < 0.05)