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. 2020 Mar 21;21(1):168–175. doi: 10.1007/s12663-020-01351-w

Table 1.

Inter- and intragroup comparisons of outcome variables

Variables		Preop	1-week follow-up	P (on comparison with preoperative values)	3-month follow-up	P (on comparison with preoperative values)	6-month follow-up	P (on comparison with preoperative values)	12-month follow-up	P (on comparison with preoperative values)
Painless mouth opening	Gp A	24.7 ± 8.3	29.5 ± 7.6	< 0.05 (0.010)^b	31.3 ± 7.6	< 0.05 (0.001)^b	33.6 ± 7.0	< 0.05 (0.000)^b	35.4 ± 6.9	< 0.05 (0.000)^b
Painless mouth opening	Gp B	31.2 ± 7.2	32.9 ± 9.5	> 0.05 (0.434)^b	36.0 ± 9.8	> 0.05 (0.115)^b	37.8 ± 10.2	< 0.05 (0.051)^b	39.1 ± 9.6	< 0.05 (0.020)^b
P value		> 0.05 (0.054)^a	> 0.05 (0.357)^a		> 0.05 (0.199)^a		> 0.05 (0.260)^a		> 0.05 (0.286)^a
Maximum mouth opening	Gp A	33.9 ± 10.0	35.7 ± 7.7	> 0.05 (0.249)^b	37.2 ± 6.6	> 0.05 (0.104)^b	37.2 ± 6.2	< 0.05 (0.041)^b	39.2 ± 6.2	< 0.05 (0.004)^b
Maximum mouth opening	Gp B	41.7 ± 8.5	39.4 ± 10.4	> 0.05 (0.109)^b	39.7 ± 8.9	> 0.05 (0.275)^b	41.3 ± 8.8	> 0.05 (0.795)^b	42.5 ± 8.1	> 0.05 (0.605)^b
P value		> 0.05 (0.052)^a	> 0.05 (0.340)^a		> 0.05 (0.444)^a		> 0.05 (0.206)^a		> 0.05 (0.284)
Pain (VAS)	Gp A	5.6 ± 2.3	2.0 ± 2.1	< 0.05 (0.003)^c	1.6 ± 2.3	< 0.05 (0.005)^c	1.9 ± 2.6	< 0.05 (0.004)^c	1.3 ± 2.2	< 0.05 (0.003)^c
Pain (VAS)	Gp B	5.5 ± 2.1	2.9 ± 1.7	< 0.05 (0.009)^c	2.5 ± 3.0	< 0.05 (0.013)^c	1.8 ± 2.3	< 0.05 (0.003)^c	1.5 ± 2.4	< 0.05 (0.003)^c
P value		> 0.05 (0.92)^a	> 0.05 (0.260)^a		> 0.05 (0.459)^a		> 0.05 (0.936)^a		> 0.05 (0.864)^a
Lateral movements towards unaffected side	Gp A	6.5 ± 3.1	6.6 ± 2.1	> 0.05 (0.908)^b	6.3 ± 2.1	> 0.05 (0.718)^b	7.5 ± 2.3	> 0.05 (0.074)^b	7.7 ± 2.1	< 0.05 (0.036)^b
Lateral movements towards unaffected side	Gp B	6.9 ± 3.3	7.6 ± 3.1	> 0.05 (0.191)^b	8.6 ± 2.4	< 0.05 (0.035)^b	8.6 ± 3.4	> 0.05 (0.103)^b	9.2 ± 2.7	< 0.05 (0.025)^b
P value		> 0.05 (0.804)^a	> 0.05 (0.378)^a		< 0.05 (0.024)^a		> 0.05 (0.378)^a		> 0.05 (0.154)^a

Bold values indicate that P-value is significant as it is less than 0.05

Gp Group

^aIndependent t test

^bPaired t test

^cWilcoxon test