Table 2. Antibiotic treatment groups by age group.

Long-acting benzathine penicillin (benzPCN) was mostly given as monotherapy in the penicillin group, but sometimes it was given concurrently with penicillin and broad-spectrum oral antibiotics. These numbers are in subset brackets { } because they are a subset of and included in the column to its left.

	Penicillin	{benzPCN}	Broad spectrum	{Broad spectrum + benzPCN}	None
Non-ED	362 (20%)	{227}	1337 (75%)	{30}	79 (4%)
0 to 3 years	25	{22}	124	{5}	8
4 to 12 years	179	{124}	843	{14}	45
13 to 21 years	158	{81}	370	{11}	26
ED	419 (48%)	{329}	380 (44%)	{50}	74 (8%)
0 to 3 years	24	{19}	34	{2}	10
4 to 12 years	254	{205}	253	{28}	49
13 to 21 years	141	{105}	93	{20}	15
Combined groups	781 (29%)	{556}	1717 (65%)	{80}	153 (6%)
0 to 3 years	49	{41}	158	{7}	18
4 to 12 years	433	{329}	1096	{42}	94
13 to 21 years	299	{186}	463	{31}	41