Eleven ( @ % ) of @ patients in the supraclavicular group versus @ ( @ % ) of @ in the infraclavicular group had complete hemidiaphragmatic paralysis ( P = @ -LSB- @-tailed -RSB- ; relative risk , @ -LSB- @ % confidence interval , @-@ @ -RSB- ) ; @ % versus @ % had any ( complete or partial ) paralysis ( P = @ ; relative risk , @ -LSB- @ % confidence interval , @-@ @ -RSB- ) .