Table 4.

Comparison of blood pressure levels in the two groups before and after treatment ($\overline{\text{x}}$ ±s).

Groups	n	Before treatment		After treatment
		DBP	SBP	DBP	SBP
Observation group	30	85.87 ± 8.01	122.12 ± 10.65	89.17 ± 6.12	127.62 ± 11.28
Control group	30	85.02 ± 7.98	123.61 ± 10.17	89.68 ± 6.58	126.88 ± 11.61
t	—	0.412	0.554	0.311	0.250
P	—	0.682	0.582	0.757	0.803

DBP, Diastolic Blood Pressure; SBP, Systolic Blood Pressure.