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. Author manuscript; available in PMC: 2011 Jan 3.
Published in final edited form as: J Sex Res. 2009 Sep–Oct;46(5):483–493. doi: 10.1080/00224490902846495

Table 2.

Associations Between Responses of Partners for Relationship Characteristics, Episodes of Unprotected Sex and Protected Sex

Variable Mean Difference
Between Female and
Male Partner (standard
deviation)		 Correlation Coefficient
Between Female and
Male Partner
Length of Relationship in
Months		 − 0.85 (8.94) 0.893 (p<.0001) a
Number of Episodes of
Unprotected Vaginal Sex
in Past 3 Months		 − 7.63 (83.39) 0.460 (p<0.0001) b
Number of Episodes of
Protected Vaginal Sex in
Past 3 Months		 − 0.21 (19.57) 0.545 (p<0.0001) b
a

Pearson’s correlation coefficient is calculated for normally distributed continuous variable(s).

b

Spearman’s rank correlation coefficient is calculated for highly skewed continuous variable(s).