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Table 3 Risk factors or characteristics of endometriosis patients

From: Clinical diagnosis of pelvic endometriosis: a scoping review

Author(s) [Ref.]

Year

Study design

Sample size

Findings

Kashima et al. [38]

2004

Case–control

623

Familial tendency.

Hediger et al. [39]

2005

Cohort study

48

Taller, thinner and lower body mass index, late maturers (menarche at ≥14 y) and late to initiate sexual activity (≥21 y), less likely to be gravid, parous, and a current smoker.

Flores et al. [33]

2008

Cross-sectional

1285

Longer length of menses, earlier menarche and shorter cycle length.

Parazzini et al. [40]

2008

Case–control

672

More education, lower body mass index, never smoking and null parity.

Sinaii et al. [41]

2008

Cross-sectional

940

Pelvic pain, subfertility.

Yi et al. [1]

2009

Retrospective review of clinical records

481

Lower BMI.

Bazot et al. [42]

2009

Retrospective longitudinal study

92

Infertility, previous surgery for endometriosis, nulliparity, noncyclic chronic pelvic pain, dysmenorrhea, deep dyspareunia, painful defecation, dysuria and asthenia.

Treloar et al. [12]

2010

Case–control

268

Early menarche and early history of dysmenorrhea.

Lafay et al. [43]

2011

Case–control

476

Lower body mass index.

Chapron et al. [44]

2011

Cross-sectional

229

Positive family history, more absenteeism from school during menstruation, OC pill use for treating severe primary dysmenorrhea.

Nnoaham et al. [54]

2012

Systematic review and meta-analysis of case–control studies.

18 articles

Early menarche

Peterson et al. [45]

2013

Cohort

626

Infertility history, dysmenorrhea and pelvic pain.

Parazzini et al. [55]

2013

Metaanalysis

15 articles

Alcohol consumption

Borghese et al. [46]

2014

cross-sectional

663

Rhesus negativity

Xie et al. [48]

2014

prospective cohort study

88 623

Severe teenage acne.

Vercellini et al. [49]

2014

Case–control

771

Blue eye color

Tu et al. [50]

2014

Prospective cohort study

9,585

Prior OCP use in nulliparous women

Bungum et al. [56]

2014

Systematic review

5 articles

Increased risk of allergic disorders (asthma, hay fever/allergic rhinitis of the sinus, eczema, food allergy, allergy to either pollen, dust, trees, paint, grasses, cigarette smoke, perfumes/fragrances, cleaning products, foods or environmental chemicals)

Bonocher et al. [57]

2014

Systematic review

6 articles

Inconclusiveness regarding the benefits of physical exercise as a risk factor