Participation was offered to patients scheduled at the colposcopy clinic in the Inca Regional Hospital (Mallorca, Illes Balears) who met the criteria (Table 1).

Criteria for inclusion and exclusion in the study.

Inclusion criteria
 Women between 35 and 65 years old
Exclusion criteria
 Pregnancy and first six weeks of the puerperium
 Not having a cervix (prior hysterectomy or trachelectomy)
 Vaginal bleeding
 Use of medication, creams or vaginal douches in the last 48 h before sample collection
 Ignorance of the co-official languages of the Balearic Islands by the participant and, if applicable, by her companion
 Illiteracy in the strict or functional sense
 Inability to perform self-sampling
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