H.—3l.

Table showing Anæsthetics administered in Public Hospitals of the Dominion during the Quinquennial Period 1924-29, and Deaths in Relation to Anesthetics used (Years ended 31st March).

Yearly fatality-rate per 10,000 : 1924-25, 4-34 ; 1925-26, 5-16 ; 1926-27, 4-57 ; 1927-28, 4-69 ; 1323-29, 3-36. Quinquennial fatality-rate per 10,000: 4-41.

32

Anesthetics. 1924-25. 1925-26. 1926-27. 1927-28. 1928-29. Total. Induction. j Maintenance. Number. Deaths. Number/Deaths. Number. Deaths. Number. Deaths. Number. | Deaths. Number. Deaths. | i Chloroform .. Chloroform .. 479 .. 527 .. 670 .. 560 .. 389 .. 2,625' Chloroform .. Ether.. .. 1,897 1 2,220 1 2,582; .. 1,379 .. 1,008 1 9,086 3 Chloroform .. Chloroform and 256 .. 69 .. 163 • • 43 .. 21 1 552 1 Ether .. .. Ether .. .. 5,916 4 4,005 3 4,610 7 5,800 5 5,593 1 25,924 20 Ether .. .. Chloroform and 1 .. 23 .. 23 .. .. .. 2 .. 49 ether Ether .. .. Chloroform .. 7 .. .. .. .. I 3 .. .. .. 10 Ether (rectal) .. .. .. .. 17 11 .. ! 12 20 60 Ether and oxygen .. Ether and oxygen 1 .. 1 .. .. .. 77 .. 42 1 121 I Chloroform and ether Ether .. .. 7,400 2 12,227 5 11,050 2 12,757 8 13,555 2 56,989 19 Chloroform and ether Chloroform and 1,664 1 2,750 2 1,868 1 ; 2,123 .. 1,458 .. 9,863 4 ether Chloroform and ether Ether and oxygen .. .. .. .. .. • • • • • • 1.68 .. 168 Chloroform and ether Nitrous oxide and .. .. .. . . .. .. .. .. 1 .. 1 oxygen Alcohol and chloro- Chloroform and .. .. .. .. .. .. 34 .. .. .. 34 form ether Chloroform and ether Chloroform .. 180 .. 192 .. 47 ] 108 .. 3 .. 530 1 Chloroform and Oxygen .. .. .. .. .. .. .. 9 .. .. .. 9 oxygen Ethylchloride .. Ether .. .. 1,463 .. 3,257 2 3,197 .. 4,296 1 4,917 2 17,130 5 Ethylchloride Ethylchloride .. 55 . . 131 .. 160 .. 160 .. 109 .. 615 (general) Nitrous oxide and Nitrous oxide and 370 .. 1,086 1 1,333 .. 1,951 .. 2,249 2 6,989 3 oxygen oxygen Nitrous oxide and Ether .. .. .. .. 72 .. 16 .. 19 .. 36 .. 143 oxygen Nitrous oxide and Ether and oxygen .. . . 8 . . .. .. 101 .. 248 .. 357 oxygen Nitrous oxide .. Ether .. .. 16 1 .. .. .. .. 2 19 Nitrous oxide .. 'Nitrous oxide . „ 229 1 526 .. 78 .. 31 .. .. .. 914 1 Nitrous oxide, oxygen, Nitrous oxide, .. .. 26 .. 16 .. 16 .. 7 .. 65 and ether oxygen, and ether Nitrous oxide .. Chloroform and 1 .. .. .. .. .. .. .. .. .. 1 ether Spinal (anesthetic .. 81 98 338 .. 68 .. 154 .. 739 not given) Stovaine (spinal) .. .. .. .. 90 1 6 1 63 98 257 2 Stovaine .. .. Ether .. .. .. . . .. .. .. .. .. .. ' 13 . . 13 Spinal .. .. Nitrous oxide and .. .. .. .. .. .. 11 .. .. .. 11 oxygen Spinal .. .. Ether .. .. 12 .. .. .. .. .. 41 .. .. .. 53 Local .. .. Nitrous oxide and 15 .. .. 1 .. 10 .. 1 .. 26 oxygen Local .. .. Ether .. . . 38 . . .. ! .. 8 .. 26 . . 72 Local .. '.. .. 587 .. 1,749 .. ,2,225 1* 2,245 If 2,577 If 9,383 3 Totals .. .. 20,718 9 29,075' 15 28,393 13 31,925 15 32,697 11 142,808 63 ! !__ i * Novocaine. f Nitrous oxide and oxygen and novocaine. % Novocaine.