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Table 1 Distribution of variables of interest and cognitive and physical function by sex

From: The impact of occupational experience on cognitive and physical functional status among older adults in a representative sample of Korean subjects

Variables

Male

Female

n

(%)

n

(%)

Marital status

    
 

Married

1752

(91.2)

1354

(54.5)

 

Divorced

32

(1.7)

38

(1.5)

 

Widowed

133

(6.9)

1086

(43.7)

 

Others

5

(0.3)

7

(0.3)

Educational level

 

No education

267

(13.9)

1070

(43.0)

 

Elementary

618

(32.2)

953

(38.3)

 

Middle school

341

(17.7)

262

(10.5)

 

High school

446

(23.2)

161

(6.5)

 

College or more

249

(13.0)

40

(1.6)

Household income*

 

1st quartile

496

(25.8)

844

(34.0)

 

2nd quartile

636

(33.1)

781

(31.4)

 

3rd quartile

495

(25.8)

532

(21.4)

 

4th quartile

295

(15.3)

329

(13.2)

Current employment status

 

Employed

690

(35.9)

336

(13.5)

 

Retired

785

(40.8)

453

(18.2)

 

Unemployed

447

(23.3)

1697

(68.3)

Principal job type during lifetime

 

Non-manual work

468

(24.3)

135

(5.4)

 

Manual work

1212

(63.1)

1653

(66.5)

 

Other

246

(12.8)

699

(28.1)

Smoking

 

Current smoker

638

(33.2)

91

(3.7)

 

Past smoker

494

(25.7)

20

(0.8)

 

Nonsmoker

790

(41.1)

2375

(95.5)

Drinking

 

Yes

1059

(55.1)

277

(11.1)

 

No

863

(44.9)

2209

(88.9)

Chronic disease

 

Hypertension

627

(32.6)

993

(39.9)

 

Diabetes mellitus

295

(15.3)

400

(16.1)

 

Cardiac disorder

122

(6.3)

187

(7.5)

 

Cerebral vascular disease

115

(6.0)

87

(3.5)

BMI¶

 

Severe obesity

22

(1.1)

67

(2.7)

 

Obesity

321

(16.7)

499

(20.1)

 

Overweight

550

(28.6)

602

(24.2)

 

Normal

881

(45.8)

1040

(41.8)

 

Underweight

111

(5.8)

150

(6.0)

MMSE

 

≤17

176

(9.2)

593

(23.9)

 

>17

1746

(90.8)

1893

(76.1)

 

Mean (SD)

24.33

(5.80)

21.12

(6.83)

IADL

 

≤7

1846

(96.0)

2385

(95.9)

 

>7

76

(4.0)

101

(4.1)

 

Mean (SD)

0.78

(2.11)

0.81

(2.14)

ADL

 

<1

1804

(93.9)

2307

(92.8)

 

≥1

118

(6.1)

179

(7.2)

 

Mean (SD)

0.26

(1.18)

0.23

(1.01)

  1. *Household income: 1st quartile, below 3 million won; 2nd quartile, between 3 million and 12 million won; 3rd quartile, between 12 million and 30 million won; 4th quartile, more than 30 million won.
  2. ¶BMI(body mass index): severe obesity, BMI ≥30; obesity, 30 < BMI ≤ 25; overweight, 25 < BMI ≤ 23; normal,23 < BMI ≤ 18.5; underweight, BMI < 18.5.