Summary statistics for drg2001 dataset : by Jean Roth , jroth@nber.org , 22 Apr 2016 Variable | Obs Mean Std. Dev. Min Max -------------+--------------------------------------------------------- drg | 0 drgnum | 511 256 147.6573 1 511 drgweight | 511 1.36145 1.634696 0 19.0098 drgdesc | 0 drgsys | 0 -------------+--------------------------------------------------------- drgvers | 511 18 0 18 18 glos | 511 4.158317 3.244423 0 33.7 trim | 511 239.3346 83.99082 0 580 low | 0 alos | 511 5.455969 4.350353 0 51.8 -------------+--------------------------------------------------------- mdc | 494 9.058704 6.044007 0 25 medsurg | 0 fydate | 511 14884 0 14884 14884 fyear | 511 2001 0 2001 2001 mdcdesc | 0 by Jean Roth , jroth@nber.org , 22 Apr 2016