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Table 8 Analysis of mood and behaviour using the Kruskal-Wallis test for SPAQ scores

From: Seasonality in mood and behaviours of Japanese residents in high-latitude regions: transnational cross-sectional study

Mood Interpersonal behavior Sleep
  p-value Chi-squared value Regional comparisons p-value Chi-squared value Regional comparisons p-value Chi-squared value Regional comparisons
January ** 16.18 UK < J, SA ** 21.7 UK < J, SA * 14.62 SA < UK, J
February n.s. 11.69 - ** 23.43 SA < UK, NC, J ** 10.36 SA < UK, J
March n.s. 6.52 - n.s. 10.88 E < SA n.s. 1.97
April * 11.71 SA < UK n.s. 2.16 n.s. 2.98
May ** 50.79 J < UK; SA < UK, NC,J ** 25.23 SA < UK, NC, J ** 10.39 NC < J
June ** 97.01 J < UK,NC; SA < UK,NC ** 49.66 J < UK, NC; SA < UK, NC * 14.77 UK, NC < J
July ** 104.48 J < UK,NC; SA < UK,NC ** 28.37 J < UK, NC; SA < UK, NC n.s. 8.12
August ** 46.81 J < UK,NC; SA < UK,NC n.s. 3.86 ** 15.78
September n.s. 11.35 n.s. 7.65 n.s. 6.2
October ** 21.24 UK, NC < J; SA < J n.s. 3.24 * 12.72 J < NC
November ** 44.83 NC < UK; UK, NC < J; UK, N < SA n.s. 9.6 J < UK n.s. 7.71
December * 13.97 UK < J,SA n.s. 4.53 n.s. 5.66
  1. UK United Kingdom, NC Nordic countries, J Japan, SA Southeast Asia
  2. **p < .0016 *p < .0083 (Bonferroni correction)