Uptake of seasonal climate forecast

Yes

No

Total

Hindrances to use of seasonal climate forecast

Positive/True

A_i

B_i

A_i + B_i

(Total number of subjects with positive test for each the 9 variables)

Negative/False

C_i

D_i

C_i + D_i

(Total number of subjects with negative test for each of the 9 variables)

Total

A_i + C_i

B_i + D_i

A_i + B_i + C_i + D_i