Table 2

Menstrual cycle disorders prevalence (OR and 95% CI).

Cases
 Controls
 OR (95% CI)
 χ2
 p




Menstrual cycle disorders
 n°
 %
 n°
 %


     No
 20
 32.3
 66
 35.5
 1.2 (0.6-2.3)
 0.09
 0.6456
     Yes
 42
 67.7
 120
 64.5





     Total
 62
 -
 186
 -



Amenorrhea






     No
 50
 80.6
 182
 97.8
 33 (7.2-151.8)
 *
 0.0000
     Yes
 12
 19.4
 4
 2.2





     Total
 62
 -
 186
 -



Oligomenorrhea






     No
 48
 77.4
 164
 88.2
 2.7 (1.1-6.4)
 3.37
 0.0412
     Yes
 14
 22.6
 22
 11.8





     Total
 62
 -
 186
 -



Hypomenorrhea






     No
 48
 77.4
 176
 94.6
 9.8 (3.3-29.4)
 13.23
 0.0001
     Yes
 14
 22.6
 10
 5.4





     Total
 62
 -
 186
 -



Polymenorrhea






     No
 57
 91.9
 179
 96.2
 3.28 (0.7-14.7)
 1.12
 0.01573
     Yes
 5
 8.1
 7
 3.8





     Total
 62
 -
 186
 -


Dysmenorrhea






     No
 32
 51.6
 126
 67.7
 2.3 (1.2-4.4)
 4.61
 0.0214
     Yes
 30
 48.4
 60
 32.3





     Total
 62
 -
 186
 -


Metrorrhagia






     No
 56
 90.3
 182
 97.8
 9.75 (1.9-50.6)
 4.80
 0.0106
     Yes
 6
 9.7
 4
 2.2





     Total
 62
 -
 186
 -


Menometrorrhagia






     No
 54
 87.1
 148
 79.6
 0.52 (0.2-1.3)
 2.28
 0.1859
     Yes
 8
 12.9
 38
 20.4





     Total
 62
 -
 186
 -


Pre-menstrual syndrome






     No
 32
 51.6
 97
 52.2
 1.02 (0.5-1.9)
 0.0058
 0.9394
     Yes
 30
 48.4
 89
 47.8





     Total
 62
 -
 186
 -


*Fischer's exact test used to assess p; 95% CI poorly accurate.

Martinelli et al. BMC Gastroenterology 2010 10:89   doi:10.1186/1471-230X-10-89

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