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. 2017 Apr 18;12(4):e0175068. doi: 10.1371/journal.pone.0175068

Table 1. Demographic characteristics of women in the intervention groups.

Couple One-to-One Wait-List Control Test Sig. Effect Size
Variable n M(SD) n M(SD) n M(SD) F p η2
Patient age 28 35.14(7.67) 30 34.67(8.07) 25 34.56(8.29) .041 .960 .001
Relationship Length 28 8.30(7.732) 30 9.97(6.81) 25 9.56(7.52) .402 .670 .010
n % n % n % χ2 p ϕ
Relationship Status
Partnered/living together 25 89.3 25 83.3 22 88.0 3.120 .538 .194
Partnered/not living
together
2 7.1 5 16.7 3 12.0
    Other 1 3.6 - - - -
Contraceptive use
    None 12 42.9 13 43.3 5 20.0 6.007 .199 .269
    Hormonala 6 21.4 3 10.0 4 16.0
    Otherb 10 35.7 14 46.7 16 64.0
Sexuality
Heterosexual 28 100 30 100 25 100

a Includes oral contraceptive pill, intra-uterine hormonal device or implant

b Includes condoms, abstinence, sterilization or withdrawal.