Frequencies for first 10,000 rows of route variable in drug2011q3 dataset : The route of drug | administration | Freq. Percent Cum. -----------------------------+----------------------------------- | 4,625 46.25 46.25 020075 | 1 0.01 46.26 020415 | 2 0.02 46.28 021029 | 1 0.01 46.29 021743 | 3 0.03 46.32 022003 | 1 0.01 46.33 022256 | 1 0.01 46.34 022275 | 1 0.01 46.35 022522 | 1 0.01 46.36 074978 | 1 0.01 46.37 076313 | 1 0.01 46.38 BUCCAL | 1 0.01 46.39 DENTAL | 1 0.01 46.40 EPIDURAL | 1 0.01 46.41 INTRA CORPUS CAVERNOSUM | 1 0.01 46.42 INTRA-ARTERIAL | 1 0.01 46.43 INTRA-ARTICULAR | 2 0.02 46.45 INTRA-UTERINE | 76 0.76 47.21 INTRADERMAL | 2 0.02 47.23 INTRAMUSCULAR | 221 2.21 49.44 INTRAOCULAR | 13 0.13 49.57 INTRAPERITONEAL | 1 0.01 49.58 INTRATHECAL | 2 0.02 49.60 INTRATUMOR | 1 0.01 49.61 INTRAVENOUS | 1,212 12.12 61.73 INTRAVENOUS BOLUS | 9 0.09 61.82 INTRAVENOUS DRIP | 77 0.77 62.59 INTRAVESICAL | 2 0.02 62.61 NASAL | 8 0.08 62.69 OCCLUSIVE DRESSING TECHNIQUE | 1 0.01 62.70 OPHTHALMIC | 3 0.03 62.73 ORAL | 2,574 25.74 88.47 OROPHARINGEAL | 2 0.02 88.49 OTHER | 7 0.07 88.56 PARENTERAL | 23 0.23 88.79 RECTAL | 14 0.14 88.93 RESPIRATORY (INHALATION) | 63 0.63 89.56 SUBCUTANEOUS | 302 3.02 92.58 SUBLINGUAL | 13 0.13 92.71 TOPICAL | 27 0.27 92.98 TRANSDERMAL | 37 0.37 93.35 TRANSMAMMARY | 1 0.01 93.36 TRANSPLACENTAL | 31 0.31 93.67 UNKNOWN | 629 6.29 99.96 VAGINAL | 4 0.04 100.00 -----------------------------+----------------------------------- Total | 10,000 100.00 by Jean Roth , jroth@nber.org , 18 Dec 2015