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Table 7 Estimated between-group differences in changes over time for predicted means on the Perceived Stress Scale (PSS), with confidence intervals and chi square statistic.

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

 

Placebo vs Control

Fish oil vs Control

Fish oil vs Placebo

Estimate

2.786

6.059

3.273

95% CI sep

3.289

3.046

3.943

95% CI joint

4.692

4.345

5.625

Chi square

2.754

15.193*

2.647

  1. * Significance determined by observed value of chi sq ≥ 3.84, the critical value of chi square for df = 1 when p ≤ 0.05 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, chi sq = chi square, vs = versus, the difference between groups
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Nutrition Journal

ISSN: 1475-2891

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