Table 5.

Multiple regression analyses for overall immunization knowledge of physicians: R² = 0.106.

VARIABLE	COEFFICIENT	SE	P VALUE
Sex
• Male	Reference
• Female	2.71	0.95	.005
Proportion of patient population younger than 5 y
• 0–10	Reference
• 11–25	0.88	1.06	.405
• 26–50	−0.69	2.34	.768
• 51–75	7.76	2.74	.005
• 76–100	6.85	3.59	.058
Received training on immunization provision outside of academic studies
• No or do not remember	Reference
• Yes	2.11	0.92	.023

SE—standard error.