Table 5 Route and duration of antibiotic treatment by chest x ray change and severity.

Antibiotic	Effusion (65)	Lobar (141)	Patchy (435)	Perihilar (127)	Mild (155)	Moderate (138)	Severe (418)
None	4	5	60	20	55	4	28
Oral alone	1	14	74	28	39	16	62
IV alone	5	16	26	9	3	5	43
IV+oral	55	106	275	70	58	113	285
Days IV antibiotics, median (IQR)	4 (2, 6)	3 (2, 5)	2 (2, 4)	2 (2, 3)	2 (1, 2)	3 (2, 4)	2 (2, 4)
Days oral antibiotics, median (IQR)	14 (7, 28)	6 (5, 9)	6 (5, 7)	5 (5, 7)	6 (5, 7)	6 (5, 7)	6 (5, 7)
Days total antibiotics, median (IQR)	10 (6.5, 28)	7 (5, 10)	6 (5, 7)	5 (5, 7)	5 (5, 7)	6 (5, 7)	6 (5, 7)
Days in hospital, median (IQR)	5.5 (4, 8.5)	4 (2, 7)	3 (2, 5)	3 (2, 4)	2 (1, 2)	3 (3, 5)	3 (2, 6)