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Table 1: Table of included studies on dysmenorrhoea - page 35 / 87

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35 / 87

Yang JM, China, English, 2002 (80)

6

15-44

A epidemiological study was conducted on 296 non pregnant female workers exposed to mercury vapor and 394 female workers from food processing plants working for at least 1 year; women using Oral Contraceptives, intrauterine device or steroid hormones were excluded

Serious menstrual pain that affected work or required medication to relieve symptom before or during menstrual cycle

Self administered questionnaire (nv)

Not stated

N

2

0

42

394

10.7

(7.8-14.1)

Nunez, Venezuela, Spanish, 1991(81)

3 months

16-30

20,20% of the total of the female population of 3787 students during the period between January and March of 1988 were surveyed

Not stated

Pain during menses

Not specified

N

2

0

536

765

70

Pena Nina, Dominican Republic, Spanish, 1993(82)

Not stated

Not stated

laborers of business of zone franca and banking institution of the city of Holy Sunday were surveyed.

Not stated

Dysmenorrhoea unspecified

Not clear

N

2

0

55.3

Montero, Spain, English, 1996(83)

12

14-20

Girls attending secondary schools in the municipality of Alcobendas, on the outskirts of Madrid were interviewed

Menstrual pain over the last 12 months

Questionnaire by interview (nv)

Not stated

Y

1

0

670

1146

58.5

(55.5-61.3)

Approximate rate

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