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points with straight lines shows a fairly steady occurrence of accidents each month. (Table VIII.)

The following table gives the number of fatal accidents for each month of the year (Table IX.):

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Diagram 6 summarizes certain facts relating to persons who received non-fatal injuries. The study at the top compares the sex of persons injured. Of the total number of persons reported as injured, 91 per cent. were male and 9 per cent. were female.

The second study shows the wage groups into which the injured persons were classified. Of the total number of persons injured, 7 per cent. received over $20 per week; 15 per cent., between $15 and $20 per week; 18 per cent., $8 or less per week; and 60 per cent., between $8 and $15 per week.

The third study shows the number of persons who were paid on a piece-rate basis and the number who were paid on a time basis. Relatively 85 per cent. of the employees injured were paid on a time basis. (Table X.)

Applying the same study to fatal accidents, there was only 1 case in which a woman was fatally injured.

The following table shows the wages received by those who were fatally injured :

Wages of those fatally in jured.

27

$8 and under, $15 and under, $20 and under, Over $20, .

288 102 57

In connection with these figures, as well as with those covering non-fatal injuries, it is of interest to note that accidents occur more frequently among persons who receive a wage approaching $15 per week, and also among those who receive between $15 and $20 per week. Of the 474 fatal cases, 4 of the injured persons were paid on a piece-rate basis. (Table XI.)

The ages of persons not fatally injured are shown graphically in Diagram 7, by means of the figure drawn in descending order of magnitude. The greatest number of accidents, as represented, occurred among those between the ages twenty-one to twenty-nine years; the next highest number fell in the group between thirty and thirty-nine years. This preponderance of accidents, almost 60 per cent of the total number, among persons at the most vigorous period of life, is highly significant from many points of view, and is extremely valuable in studying the conditions relating to industrial accidents. (Table X.)

The ages of persons fatally injured are shown in the following table:

Ages of Persons fatally injured. Under 16, . 16 to 20,

18 21 to 29,

135 30 to 39,

113 40 to 49, .

83 50 to 59, :

66 60 and over,

55

.

.

Total,

474

As in non-fatal cases, the number of fatalities was heaviest among those between twenty-one and thirty-nine years. The number of persons in these two groups comprised over 50 per cent. of the total. (Table XI.)

The next matter to be considered is that relating to the period of disability, to which the 89,694 non-fatally injured persons were subject. Diagram 8 shows the relative duration of disability of these employees, classified by seven periods of time. Seventy-six per cent. were disabled for less than two weeks; 19 per cent were disabled between two and eight weeks; 3 per cent, were disabled from eight to thirteen weeks; and 1.3 per cent. were disabled over thirteen weeks.

Relative Frequency of Non-Fatal Accidents

By Age Periods. July 1,1912 to June 30,1913.

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Massachusetts Industrial Accident Board.

Alle bver 60

2.2%

Under16

2.5%

50-60

6.5%

40-50

16-21

30-40

21-30

Diagram 7.

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