A Normal Distribution Based On The Shapiro Wilk Test For Normality Essay

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3. RESULTS All data demonstrated a normal distribution based on the Shapiro-Wilk test for normality; therefore, no further transformation was required. Mean ages (SDs) of the participants were 24 (3.7) years in the PA group and 23.6 (2.3) years in the placebo group. Baseline characteristics between the groups were similar for all variables (P>0.05) (Table 1). A total of 44 enrolled participants completed the follow-up (Figure 1). Participants denied any adverse and/or side effects during the follow-up periods. A mixed-effect model of repeated measure analysis showed no significant between-group differences for HR (Figure 2) and DBP (Figure 4). On the contrary, the averaged total HR, regardless of the groups, showed a statistically significant change over time (p-value=0.0043 in Table 2). The overall group-by-time interaction for the mixed-model was statistically significant only for SBP (p-value=0.0105) in that PA group had significantly reduced SBP while the placebo group had increased SBP during-intervention. The 95% CI of the change in SBP (1.65 to 4.25 mmHg) exceeded the minimal detectable change (MDC) of 4.16 mmHg (Yung et al 2014) for some individuals. The post-hoc analysis revealed that the changed SBP during-intervention was significantly different between the PA and the PA-P group (p-value=0.003 in Figure 3). The between-group differences were no longer significant at post follow-up. Males had statistically higher SBP than females overall (p-value=0.0027 in Table
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