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Table 1: Table of included studies on dysmenorrhoea - page 21 / 87

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Silberg, Australia, English, 1987(45)

16

18-53

Between November 1980-March 1982, 1233 pairs monozygotic and 751 pairs dizygotic twins were surveyed and repeatability was tested after 3 months; both twins were menstruating regularly and neither was pregnant at the time of completing questionnaire; mean age 29+/-8 years

Moderate or severe pain during period severe enough to limit normal activity or to require medical treatment

Questionnaire (v)

64

Y

1

2

1296

2492

52

(50-54)

Whorwell, UK, English, 1986(46)

Not stated

18-54

Age, social class matched controls for patients with IBS recruited from staff registers of local commerce and industry after completing a screening questionnaire to exclude subjects with IBS who were about 11% of the group

Dysmenorrhea undefined

Interview-Questionnaire (nv)

Not stated

N

1

2

42

90

46.7 (36.1-51.5)

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