Assess the effectiveness of interventions to asthma of patients: Effective interventions Hong Thai (n=200) Quoc Tuan (n=255) EI BI n (%) AI n (%) PI p BI n (%) AI n (%) PI Level of asthma Level 1 82 (41, 0) 103 (51, 5) 25, 6 <0, 05 116 (45, 5) 125 (49, 0) 7, 7 17, 9 Level 2 76 (38, 0) 70 (35, 0) 7, 9 >0, 05 91 (35, 7) 87 (34, 1) 4, 5 3, 4 Level 3 33 (16, 5) 23 (11, 5) 30, 3 >0, 05 39 (15, 3) 32 (12, 5) 18, 3 12, 0 Level 4 9 (4, 5) 4 (2, 0) 55, 5 >0, 05 9 (3, 5) 11 (4, 3) 22, 8 32, 7 Level of asthma control Uncontrollable 135 (67, 5) 81 (40, 5) 40, 0 <0, 001 168 (65, 8) 160 (62, 7) 4, 7 35, 3 Partial control 58 (29, 0) 97 (48, 5) 67, 2 <0, 001 76 (29, 8) 83 (32, 5) 9, 0 58, 2 Full control 7 (3, 5) 22 (11, 0) 214, 3 <0, 01 11 (4, 3) 12 (4, 7) 9, 3 205 Affection Have to go to emergency in the past year 14 (7, 0) 11 (5, 5) 27, 3 >0, 05 29 (11, 4) 28 (11, 0) 3, 5 23, 8 Must go to hospital treatment 25 (12, 5) 21 (10, 5) 16, 0 >0, 05 50 (19, 6) 48 (18, 8) 4, 1 11, 9 Peak traffic 90, 3 83, 9 6, 43 >0, 05 93, 7% 94, 6 1, 0 5, 43 Vacation work 45 (22, 5) 26 (13, 0) 73, 1 <0, 05 72 (28, 2) 72 (28, 2) 0 73, 1 Leave school 4 (2, 0) 2 (1, 0) 100 - 3 (1, 2) 2 (0, 8) 33, 3 66, 6 Comment: Before intervention, the level of disease: level 1 is 43.5%; Second place was 36.7%; Level 3 is 15.8%; Level 4 is 4.0%.