Summary statistics for psi_12_postop_pulmemb_dvt_high_e variable in vwhqi_hosp_ahrq dataset : Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- psi_12_po~_e | 3,112 7.556886 2.069262 2.86 21.99 by Jean Roth , jroth@nber.org , 16 Nov 2016