Meanings of non-linear association in English

We observed a non-linear association between maternal selenium status and TSH levels.

A non-linear association was observed between maternal selenium and TSH levels.

The tests for the non-linear association were all not significant for both male and female.

These findings highlight the overarching importance of the early Treg response to infection and the non-linear association between inflammation and the prevailing Treg frequency.

Linear and generalized additive models were used to evaluate linear and non-linear associations.

Significant non-linear associations of temperature-mortality relation were found in U or inverted J shape.

Potential non-linear associations were examined by restricted cubic splines.

Non-linear association and cognitive paths, until now embodied in hypertext structures that we experience on the World Wide Web, belong to this category, too.