Table 3 Statistical analysis (p values) for experimental and control groups (pre-and post-chewing) for sample measurements.

From: The impact of khat chewing on heart activity and rehabilitation therapy from khat addiction in healthy khat chewers

Comparisons

HRV

Heart rate

QT interval

PR segment

Experimental pre-chewing versus post-chewing

0.006

0.01

0.002

0.0008

Control pre-chewing versus post-chewing

0.4

0.3

0.2

0.08

Experimental pre-chewing versus control pre-chewing

0.08

0.001

0.1

0.05

Experimental post-chewing versus control post-chewing

0.0009

0.0004

0.01

0.001

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