Table 2.

Linear regression of flucloxacillin prescribing rate on study month controlling for month of year

Variable	Coefficient (95% CI)	P
Study month	0.01 (0.01, 0.01)	0.000
Month of the year (reference: December)
January	0.18 (0.08, 0.44)	0.175
February	0.38 (0.12, 0.64)	0.004
March	0.53 (0.27, 0.79)	0.000
April	0.41 (0.15, 0.67)	0.002
May	0.61 (0.35, 0.87)	0.000
June	1.34 (1.08, 1.59)	0.000
July	1.61 (1.35, 1.87)	0.000
August	1.34 (1.08, 1.60)	0.000
September	1.26 (1.00, 1.52)	0.000
October	0.73 (0.47, 0.99)	0.000
November	0.55 (0.29, 0.81)	0.000
Constant	−1.45 (−2.36, −0.55)	0.002