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Table 6 Predicted means and 95% confidence intervals of the Perceived Stress Scale (PSS) for the treatment groups over time.

From: An adaptogenic role for omega-3 fatty acids in stress; a randomised placebo controlled double blind intervention study (pilot) [ISRCTN22569553]

 

Control

Placebo

Fish oil

Time 1

   

Mean

15.836

23.929

23.938

95% CI sep

1.203

2.555

2.390

95% CI joint

1.716

3.645

3.409

Time 2

   

Mean

15.337

20.643*

17.379*

95% CI sep

1.416

2.725

2.455

95% CI joint

2.021

3.888

3.502

  1. Note: 95% CI sep = 95% confidence interval considering each item separately, 95% CI joint = 95% confidence interval, considering the estimates of the three treatment groups collectively. *denotes significant difference from baseline (p < 0.05).