However, this study shows that those with the most favourable but long-term high-level attachment suffer from worse health than those permanently attached.
The proportion of women was higher in strengthening and poor-level attachment, whereas the permanent and high-level attachment were dominated by men (p=0.001).
Although borderline significant, the OR for the 'strengthening' (OR=1.57 (95% CI 0.99 to 2.49)) attachment was of comparable strength to the 'high level' attachment (OR=1.54 (95% CI 1.01 to 2.35)).
In another study, Lawrence A. Kurdek, a psychologist at Wright State University in Ohio, found that college students who had a high level of attachment to their dogs showed greater attachment to the pets than to their fathers.
Predicted associations between high levels of attachment anxiety and avoidance and interpersonal problems were supported, and attachment avoidance was associated with difficulties in therapeutic relationships.
This is most likely to happen shortly after the death of the pet, especially among owners who had very high levels of attachment to their pets.
These responses dovetail with results of other surveys that "consistently reveal very high levels of attachment to pets among the homeless" (Irvine, Kahl & Smith, 2012).
The participants reported high levels of attachment (56%, n = 48) and security (38%, n = 31).
Finally, in the fully adjusted models (model 3), only the high level and poor attachment were significantly related to psychological distress, with the 'poorly' attached displaying the numerically strongest association (OR=2.52 CI 1.59 to 3.98).
Expressed OR genes were fabricated from scratch using PCR-based gene synthesis (polymerase construction and amplification, aka PCA), which facilitated codon optimization for high level expression and attachment of affinity tags for detection and purification.
The F15Y variant retains a high level of heme attachment.
