Table 4: Relationship between serum zinc level and type of acne lesions.

Type and location of acne lesionsStandard deviation value

Comedones on the left cheek2.150.230.049
Papules on the forehead2.52−0.260.039
Papules on the chest and upper back5.36−0.350.016
Pustules on the right cheek2.59−0.280.011
Pustules on the chin2.23−0.340.008
Pustules on the chest and upper back10.32−0.390.006