I computed correlations out-of redheadedness and you will efficiency parameters that have sex and you will possibly confounding variables (many years, size of place of house, most recent sexual union standing, physical situation, and you can mental disease). For instance, feminine had way more intensively red tresses than men and you may redheadedness correlated adversely with age. Off most other potential covariates, latest sexual relationship condition try notably on the five out of eight parameters linked to sexual decisions. Measurements of place of household, real problem, and you will mental illness didn’t showcase many extreme connections with predictors and you will returns details (get a hold of Second Dining table S3).
Initially, we analyzed the effect of redheadedness on variables related to sexual life with GLM. https://kissbrides.com/fi/bolivialais-morsiamet/ In the first model for sexual desire, there was a significant linear effect of redheadedness and a significant effect of sex. Sexual desire was significantly higher in men (? = 0.529, SE = 0.148, p < 0.001)>
Within dataset, 10 (9.2%) feminine and you may four (5.5%) guys said they had not even had their very first sexual intercourse. I’ve thus did a good Cox regression to provide the outcome of those subjects. Redheadedness (because a good linear trend) exhibited a significant effect on the chances of which have basic sexual intercourse (Hours = dos.527, p = 0.002).