A Study on Risk Factors of Musculoskeletal Disorders among Selected Female Hair Dressers

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Table 1. characteristics of respondents

Variable N=459 %

Geneml characteristics age under 30 year

3Oyear and more Home working time per day

under 1 hour 1 hour and more Perceived living standard

middle class low class Educational level

collage and more high school or less Occupational characteristics wwking hour per day

under 11 hour 12 hour and more Type of employment

regular work irregular work working period

under 5 yean 5 year and more working type

shift work non sshlft off days per month

2 days or less 3 days and more Table 1 ol]

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Table 2. Distribution of Health behaviour

Variable N=459 %

Smoking status none smoking Exercise

regular irregular none

Drinking per week none

one and more drinking Perceived stress

no problem feeling stress

Table 3. Distribution of working condition

Variable N=459(%)

Hand to use in working one hand

both hands Position of client's head

chest of worker abdomen of worker Hight of heel of shoes

under 4cm 4-6cm 7cm and more

Standing hour per day in working under 10 hour

10 hour and more linking of repded job

no Yes

Feeling of hard work no hard working hard working

Table 4. Posti~re to take usually in working

Posture 1. Head bended or rotated Posture 2. Shoulder tilted

Posture 3. Neck hyper-flexion or hyperextention Posture 4. Arms elevated over shoudden

Posture 5. Wrist flexed or extended to hold utensils Posture 6. Lumbar twisted and flexed

Posture 7. Lumbar flexed Quently Posture 8. Standing straight with feet together Posture 9. Wrist twist ftquently

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Table 5. Job stress index

Job s m s

Never Don' t Moderate AP Very much

agree agree

I am working very tightly every day w.3) 38(8.3) 195(42.5) 168(36.6) 52(11.3) I need to learn new knowledge

or technology for my job

I am w o h g most repeatedly 1 l(2.4) 29(6.3) 15q34.0) 141(30.7) 122(26.6)

Table 6. Work related rnuscul oskeletal symptom prevalence rate by body parts

Prevalence rate during Prevalence rate during Body parts

last 1 year last 1 week

Total 259(56.4)

Neck lW(23.3)

Shoulders 167(36.4)

EIbow/Arms 7R17.0)

Hand/Wrists 1 2q27.0)

Low back 131(28.5)

LeglFOOts 1q30.5)

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Table 7. Distrib~~tion of musculoskeletal symptoms by working posture Working Total

Neck Shoulders Elbow/Arms Handnxirists Low back LegtFoots Posture N=459

Posture 1 no Yes x2-test Posture 2

no Yes x2-test Posture 3

no Yes x2-test Posture4

no Yes x?-test Posture 5

no Yes x2-test Posture 6

no yes x2-test Posture 7

no Yes x2-test Posture 8

no Yes x2-test Posture 9

no Yes x2-test

Head bended or rotated

365 43(11.8) 6q17.5)

94 2q27.7) 3q36.2)

14.76*** 15.46***

Shoulder lilted

387 51(13.2) 72(18.6)

72 lS(25.0) 2q36.1)

6.64* 11.08**

Neck hyper-flexion or hyperextention 367 45(12.3) 67(18.3)

92 2q26.1) 31(33.7)

11.00** 10.44**

Arms elevated over shoulders

369 5 l(13.8) 73(19.8) 90 lS(20.0) 25(27.8)

2.16 2.75

Wrist flexed or extended to hold utensils 39 1 53(13.6) 77(19.7)

68 1q23.5) 21 (30.9) 4.5 1

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4.32 Lumbar twisted and flexed

359 47(13.1) 69(19.2)

100 22(22.0) 2q29.0)

4.86* 4.46*

Lumbar flexed frequently

342 44(12.9) 69(20.0) 117 Z(21.4) 29(24.8)

4.93* 1.10

Standing straight with feet together 426 65(15.3) 93(21.8)

33 q12.1) 5(15.2)

0.24 0.81

Wrist twist hquently

388 q11.9) 78(20.1)

7 1 23(32.4) 2q28.2) 19.82*** 2.33

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Table 8. The risk factors of rnusculoskletal disorders syrr~ptom by body parts (by multiple logistic regression)

Neck Elbow /

Shoulders Hand / Low /

Wrists back Leg /

O.R. O.R. Foots

O.R. O.R. O.R. O.R.

Independent variables

0. No feel perceived stress

1.

Feel perceived stress 0. Under 30 years old 1. 30 years and more

0. 3 days and more off daydmonth 1. 2 days or less off daydmonth 0. Under 5 years working

1. 5 year and more working 0. Use one hand during working

1. Use both hands during working 0. 9 hours or less standing w o h g 1. 10 hours and more standing working 0. No feel lwd working

1. Feel hard w o h g Job stress index Job posture index

Cox R2 0.143 0.164 0.106 0.116 0.133 0.151

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Tableg. The risk factors of musculoskletal disorders index (by mu1 ti ple 1inea.r regression)

Independent variables Standard j t

Perceived stress(1 point-5point)) Age(l8-53years old)

OR days( 0.3days+/mo. 1. under 2dayd mo.) Walking period (1 year-10 years a ~ d mare) Working hand(0. both hand 1. one hand) T i of standing work per day(5 hours- 15 hours) Hard working(0. no 1. yes)

Job poswindex(0 points-9points) Test of Linearity Adi RZ

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