Table 1

Mean number of days of infection (mNDI) and reported versus computed significance levels from Report B [6]


First 6 months
Second 6 months
All 12 months

Placebo Group (n = 19)
12.7 ± 1.6
11.0 ± 1.2
23.7 ± 2.3
Supplement Group (n = 22)
8.5 ± 0.7
2.6 ± 0.3
11.1 ± 0.8

Reported p values
< 0.05
< 0.004
< 0.02
Computed p values



— Assuming "SD" = SD
< 0.0000000001
< 0.00000000000001
< 0.00000000000001
— Assuming "SD" = SE
< 0.012
< 0.000001
< 0.0001

Data are shown as mean ± SD. P values are the reported significance levels for statistical tests of the differences between placebo and supplement groups.

Sternberg and Roberts Nutrition Journal 2006 5:30   doi:10.1186/1475-2891-5-30

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