218 RELATION OF ORIGIN TO FERTILITY AND INFANT MORTALITY INFANT MORTALITY Attention is now called to another important section of vital statistics, that of infant mortality. The numbers of births and deaths of children under one ‘year are tabulated by the origin of the father, and the data for the registration area for the year 1925 appear in Table 135. The number of infant deaths is shown as a percentage of the total births in Column three, thus giving the crude infant mortality rate for each origin, The figures for the French include only those of French origin in parts of Canada outside the province of Quebec. The usual practice has been followed in computing the infant mortality rates, namely, that of expressing the number of deaths of infants under twelve months in a given calendar year as a percentage of the number of births in the same year. In doing that, however, certain assumptions are made which may be mentioned in passing. First, a large percentage of infant deaths occurring in the given year consist of those who have been born some time during the previous twelve months. For instance, of the 12,169 infants less than one year of age who died in 1925 perhaps half were born in 1924, yet the total infant deaths in 1925 is expressed as a percentage of the total births in that calendar year, The assump- tion underlying this procedure is that no great error appears in the infant mortality rates as a result of using the 1925 figures of births as a basis with which to compare the deaths in that period. A slight error is involved, of course, and it might assume considerable dimensions if, for some reason, the birth rate was very much higher or lower in the later year. Under normal conditions, however, the error is negligible, and as the above is the most practical method of securing a rate it is usually followed. The second assumption is that as many children under one year of age came into the Dominion as left it in the period examined. The influence of any probable difference setween the number of infants under one year emigrating and immigrating can, in the nature of the case, be only very slight. So for all practical purposes it is correct to follow the universal procedure and to say that approximately 8.07 out of every 100 babies born in the registration area of Canada die before living twelve months. CABLE 185 —-NUMBER OF DEATHS OF INFANTS UNDER ONE YEAR OF AGE, EXPRESSED AS A PER- pany OF NUMBER OF BIRTHS, BY ORIGINS, FOR THE REGISTRATION AREA OF CANADA, Origin RE eer eee tet tater tnenear enna SR TOElish. unreal III iis itununins vonntns vurne neon Eee eater iat aren renee Scotch. oiuen.... *ERRREER SAHA AS ae pe she Cy French......veiiiinn.., CT VR CRT § STOTINAMN. se vveassssanosnnes SC ates roast enna: carve MORa sis ir snraieniis be a mn [RR EE reeniens Belgian. cue vie snsiiin ee + ww fesaraeane 3ulgarian........ win EE NR Chinese........ «wn ovine Wik gE EEE A —_— Jzech....... Sh RAE o “ER ERR Janish.... errieernenar “ES EER ESE ET TERRE AA ‘innish.... Cevaresisaes sean [RV Tindu..ooos cic rw Jungarian... - . ...ceiinnn.. PEERY ih {celandie.... Sp , EvivEsee Indian.....,. - .. RA SHER 2 rN AHS Ruane Japanese..... - Prey. CT Jewish....., reer S—— Negro....... creas inci Norwegian... Cieeteeniae on Polish... .oviiinnnnnrnenns as 8 Roumanian, ... V mee LE 3] v0 ia Creeteirteerrerrerans Serbo-Croatian..,.......... ZT PR RR Bwodinh. von irerivnersr REAR EERE AS SAYRE ERY RAR AS fake be BWI. veisvunnns vas isntinm eee beet tet ie iri raene narra Tkrainian,. ........ Cees eMe tea reir atesaraaeraanatan dther........vviiinnns vo. eet ee ea tee inate ar eats aa ner vananennns. Not specified... ... Rear Etter erst atre tars teen terran a) No. of births LF, 8C. 51,846 20,093 22,772 807 18,573 9,003 72 1,832 480 132 246 251 484 1,834 496 197 11 395 384 1,958 2,161 752 460 37 37C 5: “0 24 Z, t (2) Deaths of children under 3,808 1,347 1,401 2,1f -~ 4 3) Per cent; i . 4 14 id 113 12.7 ol ( ! ! - 10-1, 18-1 ap a GC Bl +( 4 18 tg.¢ I