════════════════════════════════════════════════╤══════════════════════ REPORTABLE PREGNANCIES FOR MARRIED MOTHERS. │Infant mortality rate. ────────────────────────────────────────────────┼────────────────────── Total │ 149.9 ════════════════════════════════════════════════╪══════════════════════ 1 and 2 │ 108.5 3 and 4 │ 126.0 5 and 6 │ 152.8 7 and 8 │ 176.4 9 or more │ 191.9 ────────────────────────────────────────────────┴────────────────────── This tendency is shown in still another form of summary: Combinations of four or less pregnancies are, for convenience, considered as group 1, while the combinations of over four are designated group 2. The differences in rates in the two groups are notable. The infant mortality rate is much lower for the first than for the second group. TABLE 37.—INFANT MORTALITY RATE FOR ALL CHILDREN BORNE BY MARRIED MOTHERS, ACCORDING TO SPECIFIED NUMBER OF REPORTABLE PREGNANCIES, BY GROUPS ════════════════════════════════════════════════╤══════════════════════ REPORTABLE PREGNANCIES FOR MARRIED MOTHERS. │Infant mortality rate. ────────────────────────────────────────────────┼────────────────────── │ GROUP 1. │ │ 2 or less │ 108.5 3 or less │ 124.7 4 or less │ 119.2 │ GROUP 2. │ │ Over 4 │ 171.5 Over 5 │ 178.8 Over 6 │ 183.9 ────────────────────────────────────────────────┴────────────────────── This influence of the size of the family upon the infant mortality rate is shown in the computations giving the relative infant mortality rate for the different children borne by married mothers. The rate is most favorable for the second-born child, being 131.2. Among first born it is 143.6; for tenth or later born children 252.3. TABLE 38.—INFANT MORTALITY RATE FOR ALL CHILDREN BORNE BY MARRIED MOTHERS, ACCORDING TO THE ORDER IN WHICH THE CHILD WAS BORN