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Table 2 Paired t test: Self-rated health and mental health before and after intervention

From: The roles of health culture and physical environment in workplace health promotion: a two-year prospective intervention study in China

Variables Mean t P
Self-rated health
(N = 712)
Self-rated health (baseline) 2.96 ± 0.83   
Self-rated health (final) 3.26 ± 0.97
Self-rated health (final) − self-rated health (baseline) 0.302 ± 1.045 7.712 < 0.001
Mental health
(N = 696)
Mental health (baseline) 14.79 ± 5.02   
Mental health (final) 17.49 ± 4.92
Mental health (final) − mental health (baseline) 2.698 ± 5.977 11.911 < 0.001