| Type | Number | Percentage |
|---|
| Manic | 905 | 45.71 |
| Depressive | 729 | 36.82 |
| Stuporous | 53 | 2.68 |
| Mixed | 245 | 12.37 |
| Circular | 48 | 2.42 |
During the eight-year period referred to above in the New York hospitals there were 6,091 cases of manic-depressive and allied conditions, classified as follows:—
| Type | Number | Percentage |
|---|
| Manic | 2952 | 48.46 |
| Depressive | 2014 | 33.06 |
| Stuporous | 76 | 1.24 |
| Mixed | 773 | 12.69 |
| Circular | 199 | 3.26 |
The fourteen Massachusetts hospitals reported 672 cases in 1917 and 1918, classified as follows:—
| Type | Number | Percentage |
|---|
| Manic | 222 | 33.03 |
| Depressive | 373 | 55.50 |
| Stuporous | 4 | .59 |
| Mixed | 66 | 9.82 |
| Circular | 7 | 1.04 |
In the twenty-one hospitals in fourteen other states there were 3,409 cases of manic-depressive psychoses as follows:—
| Type | Number | Percentage |
|---|
| Manic | 1401 | 41.09 |
| Depressive | 1365 | 46.04 |
| Stuporous | 62 | 1.82 |
| Mixed | 228 | 6.69 |
| Circular | 94 | 2.76 |
The total from all of these institutions, of 12,152 cases, was classified as follows:—
| Type | Number | Percentage |
|---|
| Manic | 5480 | 45.09 |
| Depressive | 4481 | 36.87 |
| Stuporous | 195 | 1.60 |
| Mixed | 1312 | 10.79 |
| Circular | 348 | 2.87 |