Table 3.

Bacterial Growth After Contamination by Instillation Angle and Bottle Geometry

Instillation Angle	Positive	Negative	Total	% Contaminated	P Value
90° [Total]	29	25	54	53.7%
90° [Group 1 | Group 2]	25 | 4	11 | 14	36 | 18	69.4% | 22.4%	* P = 0.001
45° [Total]	38	16	54	70.4%
45° [Group 1 | Group 2]	30 | 8	6 | 10	36 |18	83.3% | 44.4%	* P = 0.005

^*Indicates the two-tailed statistical significance at a threshold of P < 0.05 for a Fisher's exact test.