exposure was defined (pooled ORs = 1.32, 95% CI = 1.14 -1.52, P < 0.001), and subgroup analyses Pooled Risk Estimate and 95% CI by 1.31 (1.04, 1.65).

This 95% is our confidence level and the Z value associated with this level is your Z*. In the next post we will see how this Z* is calculated for a given confidence level, but for now, keep in mind the following 3 frequently used Z* values for the corresponding confidence levels. 90% - 1.65 95% - 1.96 99% - 2.58

2.55. 3. We have lower limit of 1.214 and upper limit of 1.416. The confidence interval has widened or increased with the decrease in confidence from 99% to 95%. Since  Synonyms for confidence interval in Free Thesaurus. src="//img.tfd.com/thes/vt- min.js">