Table 2.

Average systolic blood pressure (BP, in mm Hg), diastolic blood pressure, O₂ saturation (SpO₂) and heart rate (in beats/min) of patients in different anxiety groups in the peri-injection period with 5-min intervals

	Mild (< 9) N = 54		Moderate (9–12) N = 30		Severe (> 12) N = 16		p valuea	Compare each pair of groupsb
	Mean	SD	Mean	SD	Mean	SD		Mild and Mod	Mod and Sev.	Mild and Sev.
DAS score
Heart rate
Preinjection	72.87	12.597	78.20	11.759	85.00	11.468	< 0.02	*	*	*
Injection	74.80	12.034	82.00	12.900	89.81	12.010	< 0.01	*	*	*
5 min	77.22	13.223	84.65	13.307	94.46	11.890	< 0.01	*	*	*
10 min	78.04	12.125	83.95	8.906	90.96	11.358	< 0.02	*	*	*
15 min	76.26	13.421	81.60	9.698	88.35	10.384	< 0.01	*	*	*
Systolic BP
Preinjection	128.91	13.304	121.40	9.875	127.23	8.738	< 0.06	*	*
Injection	129.80	12.774	124.90	12.751	133.65	7.526	< 0.01	*	*	*
5 min	127.13	13.285	124.10	10.307	132.92	8.948	< 0.01	*	*	*
10 min	126.11	12.764	122.05	13.809	129.50	8.291	< 0.02	*	*	*
15 min	124.69	13.025	120.80	8.995	128.46	6.671	< 0.01	*	*	*
Diastolic BP
Preinjection	79.10	9.676	76.75	8.019	79.00	7.020	< 0.06	*	*
Injection	79.82	9.620	77.25	9.164	80.88	8.226	< 0.04	*	*
5 min	77.94	9.545	75.75	10.376	80.62	6.859	< 0.05	*	*
10 min	77.13	9.335	75.40	8.726	78.38	6.494	< 0.07	*	*
15 min	78.61	9.398	76.20	9.046	79.50	8.349	< 0.06	*	*
SpO 2
Preinjection	97.61	1.295	97.30	.979	97.77	1.107	0.78
Injection	95.78	2.062	95.90	1.861	96.12	2.215	0.86
5 min	96.28	1.917	96.15	2.084	96.00	2.280	0.81
10 min	96.83	1.668	97.00	1.451	96.46	1.860	0.69
15 min	97.28	1.433	97.30	.923	97.23	1.478	0.93

Bold indicates the significant of p value ( p < 0.05)

*p ≤ 0.05

^aKruskal–Wallis test

^bPost-HOC test