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Table 1 Characteristics of the study participants

From: Evaluation of the prevalence of musculoskeletal symptoms, presumptive diagnosis, medical care use, and sick leave among female school meal service workers

Variables

Frequency

%

Age (years)

< 50

591

37.4

≥50

990

62.6

Subjective physical loading

Low or slightly hard

252

16.0

Hard

650

41.2

Very hard

676

42.8

Present illness

No

1417

89.6

Yes

164

10.4

Injury experience

No

1186

75.0

Yes

395

25.0

Frequency of meal service

1

1179

74.6

2–3

402

25.4

Career (years)

~ 9

635

40.3

10~19

864

54.9

≥20

75

4.8

Type of job

Chefs (manager)

263

16.6

Cooks or assistants

1318

83.4

Job control

Yes

591

37.6

No

982

62.4

Household work (hours)

< 2

1052

66.7

≥2

526

33.3

Working hour

< 48

1285

81.3

≥48

296

18.7

Type of school

High

467

29.5

Middle

358

22.6

Elementary

756

47.8

Total

1581

100.0