How to remove the outliers which locate outside the confidence interval?

Hey guys I have one question related to processing of Time series, I have xy data and want to remove the outliers, so i defined it by ones located outside the the Confidence interval, I applied the regress functions [B, Bint, R, Rint, stats] = regress(y, x); here the Bint= (-4.2785e-06 3.8515e-06);

I need to remove the observation data outside the bounds, How?

thanks in advance ashraf