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. 2012 Jul 30;7(7):e42330. doi: 10.1371/journal.pone.0042330

Table 2. Data from questionnaires.

Variable Low VO2max-group High VO2max-group p-value
n mean CI n mean CI
Own reported health status (scale 1–4) 104 3.0 2.8–3.1 107 3.3 3.2–3.4 0.001**
Vegetables intake (scale 1–5) 108 3.5 3.3–3.6 110 3.6 3.4–3.7 0.293
Fruit and berry intake (scale 1–5) 108 3.4 3.2–3.7 110 3.8 3.6–4.0 0.029*
Sausage and hamburger intake (scale 1–5) 108 1.3 1.3–1.5 108 1.2 1.2–1.4 0.102
High-fat fish intake (scale 1–5) 108 1.5 1.5–1.8 108 1.5 1.4–1.7 0.730

Food intake: 1 = 0–3 times a month, 2 = 1–3 times a week, 3 = 4–6 times a week, 4 = Once a day, 5 = 2 times or more each day. VO2max: Maximal oxygen uptake, CI: Confidence interval. P-values below 0.05 are flagged. **p<0.01, *p<0.05.