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The week-averaged axillary temperatures when rising (left) and when going to bed (right), plotted against individual values (upper) and classified by groups in 10-year increments of age (lower). n = 1645. In the lower figures, values are mean ± SD. * and ***p < 0.05 and p < 0.001, respectively, versus the group of subjects aged ≤9 years after adjustment for potential confounders.
