Effects of laparoscopic cholecystectomy on lung function: A systematic review

Table 5 Forced vital capacity (L) sensitivity results

Study	SMD	95%CI		Weight
LC
Putensen-Himmer et al[22]	-0.937	-1.866-(-0.009)		3.0%
Gunnarsson et al[25]	-0.803	-1.392-(-0.214)		7.4%
1Karayiannakis et al[26]	-0.697	-1.138-(-0.257)		13.1%
Hendolin et al[27]	-0.920	-1.504-(-0.336)		7.5%
Hasukić et al[28]	-0.649	-1.169-(-0.130)		9.5%
Mimica et al[33]	-1.197	-1.624-(-0.771)		14.1%
Freeman et al[48]	-0.752	-1.364-(-0.139)		6.8%
1Bablekos et al[29]	-0.905	-1.593-(-0.218)		5.4%
Mimica et al[36]	-1.197	-1.624-(-0.771)		14.1%
Hasukić et al[46]	-0.649	-1.169-(-0.130)		9.5%
Rademaker et al[47]	-1.198	-2.158-(-0.238)		2.8%
1Rovina et al[49]	-1.320	-1.922-(-0.718)		7.1%
Sub-total
I-V pooled SMD	-0.933	-1.093-(-0.773)		100.0%
D + L pooled SMD	-0.933	-1.093-(-0.773)
OC
Putensen-Himmer et al[22]	-1.637	-2.664-(-0.610)		5.0%
Gunnarsson et al[25]	-2.785	-3.932-(-1.637)		4.0%
Hendolin et al[27]	-1.970	-2.695-(-1.244)		9.9%
Hasukić et al[28]	-1.656	-2.266-(-1.046)		14.0%
Mimica et al[33]	-1.973	-2.452-(-1.493)		22.7%
1Bablekos et al[29]	-1.000	-1.935-(-0.065)		6.0%
Mimica et al[36]	-1.596	-2.048-(-1.145)		25.6%
Kimberley et al[39]	-3.373	-6.206-(-0.540)		0.7%
1Rovina et al[49]	-1.748	-2.403-(-1.092)		12.2%
Sub-total
I-V pooled SMD	-1.771	-1.999-(-1.542)		100.0%
D + L pooled SMD	-1.773	-2.014-(-1.531)
Overall
I-V pooled SMD	-1.208	-1.339-(-1.077)
D + L pooled SMD	-1.245	-1.468-(-1.022)
Test(s) of heterogeneity
	Heterogeneity statistic	Degrees of freedom	P value	I2
LC	8.75	11	0.645	0.0%
OC	8.59	8	0.379	6.8%
Overall	52.01	20	< 0.001	61.5%

¹48 h. LC: Laparoscopic cholecystectomy; OC: Open cholecystectomy; SMD: Standardized mean difference.