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Table 2 Demographics and cold and influenza symptoms

From: Consumption of cranberry polyphenols enhances human γδ-T cell proliferation and reduces the number of symptoms associated with colds and influenza: a randomized, placebo-controlled intervention study

Characteristic Placebo beverage Cranberry beverage P
Demographic
n 23 22  
Age (y) ± SDa 24.0 ± 3.3 24.9 ± 5.8  
Male 5 9  
Female 18 13  
BMIb, initial 21.5 ± 2.7 23.2 ± 4.0 0.103
Change in BMI (kg/m2) ± SD -0.095 ± 0.52 -0.063 ± 0.37 0.810c
No. blinded/guessed correctly (%) 23/23 (100) 5/22 (23) <0.001
Complianced (%) ± SD 96.3 ± 4.6 95.9 ± 3.7 NSDe
Cold and Influenza Symptoms
n f 20 15 0.624
Total incidenceg 31 21 0.282h
Total cold and influenza symptoms 354 297 0.031h
Incidence of intestinal distress 35 15 0.021h
Total days missed work/school 29 20 0.329h
Total times reported a decrease in activity 28 16 0.154h
  1. aSD, standard deviation bBMI, body mass index c p value derived from t-test dBased on bottle count eNSD, not significantly different fNumber of people who reported symptoms gNumber of colds and cases of influenza reported. Some individuals had more than one illness during the 10 wk period hP value derived from z-test of proportions.