Another way of pricing the food consumed is to use the number and color of the dishes left on the patron's table as a guide, similar to the method used in some Japanese conveyor belt sushi restaurants. Some newer restaurants offer a conveyor belt dim sum format, similar to the conveyor belt sushi eating places.
Sensitivity refers to a test's ability to designate an individual with disease as positive. A highly sensitive test means that there are few false negative results, and thus fewer cases of disease are missed. The specificity of a test is its ability to designate an individual who does not have a disease as negative. A highly specific test means that there are few false positive results.
It does not recommend for or against screening for depression in children seven to 11 years of age or screening for suicide risk in the general population. The Patient Health Questionnaire (PHQ)-2 and PHQ-9 are commonly used and validated screening tools.The PHQ-2 has a 97 percent sensitivity and 67 percent specificity in adults, whereas the PHQ-9 has a 61 percent sensitivity and 94 percent specificity in adults.HQ-2. Ultrashort screening instruments, such as the Patient Health Questionnaire (PHQ)-2 (Table 3) may rule out, but not definitively diagnose, depression. 19 However, the PHQ-2, which asks two simple questions about mood and anhedonia, has strengths.