TABLE 5.

The estimation of visual analog scale (VAS) decreasing rate in linear mixed effects models.

Parameters	Estimate	SE.	Df.	t	Significance	95% CI
						Lower limit	Upper limit
Intercept	7.61	0.44	617	17.34	0.000	6.75	8.47
Acupressurea	–2.05	0.23	617	–8.75	0.000	–2.51	–1.59
Maleb	0.26	0.13	617	1.96	0.051	0.00	0.52
Pain site: Leftc	–0.20	0.13	617	–1.46	0.144	–0.46	0.07
Stone location: Renal pelvis and upper ureter	–0.25	0.14	617	–1.76	0.079	–0.53	0.03
Stone location: Middle ureterd	0.32	0.18	617	1.80	0.072	–0.03	0.67
Stone size: < 6 mm	0.01	0.22	617	0.04	0.968	–0.42	0.44
Stone size: 6 mm ≤ size < 10 mme	0.12	0.15	617	0.85	0.398	–0.16	0.41
Age	0.01	0.01	617	1.20	0.230	–0.01	0.02
Time 1f	–0.34	0.24	617	–14.55	0.000	–0.39	–0.30
Time 2g	0.31	0.02	617	12.34	0.000	0.26	0.36
Acupressure * Time 1	–0.15	0.03	617	–4.38	0.000	–0.21	–0.08
Parecoxib sodium * Time 1	–	–	–	–	–	–	–
Acupressure * Time 2	0.18	0.03	617	5.29	0.000	0.12	0.25
Parecoxib sodium* Time 2	–	–	–	–	–	–	–

^a Compared with the parecoxib sodium group, the same below the interaction models.

^b Compared with female, the same below the interaction models.

^c Compared with the pain site: Right.

^d Compared with the renal pelvis, upper ureter and lower ureter.

^e Compared with the group of <6 mm and group of ≥10 mm, the same below the interaction models.

^f Time 1 was continuous variable equal to 0, 1, 5, 10, 20, 30, and 120 min.

^g Time 2 was continuous variable equal to 0, 0, 0, 0, 10, 20, and 110 min.