Table 2.

Comprehensive and subgroup analyses for different outcomes in the selective removal (SCR) group versus stepwise removal (SWR) group.

Outcomes	RR (95%CI)	P	I2
Success
Overall	1.123 (1.056, 1.194)	<0.001	52.3
Tooth type
Primary	1.035 (0.942, 1.138)	0.474	NA
Permanent	1.142 (1.075, 1.214)	<0.001	39.8
Follow-up (months)
<24	1.087 (1.010, 1.169)	0.025	38.1
24–36	1.193 (1.106, 1.287)	<0.001	0.0
>36	1.123 (0.885, 1.426)	0.34	81.4
Pulp exposure
Overall	0.266 (0.096, 0.740)	0.011	0.0
Tooth type
Primary	0.464 (0.109, 1.979)	0.300	0.0
Permanent	0.170 (0.038, 0.765)	0.021	0.0
Tooth extraction
Overall	1.628 (0.400, 6.630)	0.496	0.0
Tooth type
Primary	3.047 (0.325, 28.572)	0.329	0.0
Permanent	0.951 (0.139, 6.522)	0.959	0.1
Follow-up (months)
<24	3.000 (0.318, 28.330)	0.338	0.0
24–36	0.965 (0.143, 6.534)	0.971	3.3
Pulp necrosis
Overall	0.142 (0.026, 0.789)	0.026	0.0
Pulpitis
Overall	0.237 (0.090, 0.623)	0.003	0.0
Endodontic treatment
Overall	0.681 (0.270, 1.721)	0.416	0.0
Follow-up (months)
<24	0.855 (0.313, 2.334)	0.759	0.0
24–36	0.181 (0.009, 3.716)	0.267	NA

SCR, selective removal; SWR, stepwise removal; RR, relative risk; CI, confidence interval; NA, not available.