Corrigendum

In the Journal of Asthma 2010; 47:986–993 for the article “A subgroup analysis of the MONICA study: a 12-month, open-label study of add-on montelukast treatment in asthma patients” the authors have noticed an error since publication. In Figure 1 and Table 2, the number of patients (N) for individual time points were not referenced, making it appear that the number of patients remains the same throughout the 12-month treatment period which is incorrect. The Ns for individual time points have been inserted into the corrected Figure 1 and Table 2 below.

Figure 1.— Total ACT scores by category (<16 = uncontrolled asthma; 16–19 = poorly controlled asthma; 20–24 = well controlled asthma; 25 = completely controlled asthma) for patient subgroups: (A) gender; (B) duration of asthma; (C) presence of allergic rhinitis; (D) prior therapy; and (E) age.

Table 2.— Total Mini AQLQ scores.

Subgroups	Baseline	Month 3	Month 6	Month 9	Month 12
Gender
Male
N	552	478	423	346	304
Mean	4.21	5.15	5.35	5.52	5.66
Female
N	1044	918	830	697	584
Mean	3.95	4.95	5.22	5.32	5.49
Duration of asthma
<5 years
N	486	428	382	312	266
Mean	4.21	5.31	5.56	5.68	5.85
≥ 5 years
N	1107	965	868	728	621
Mean	3.97	4.90	5.14	5.27	5.42
Allergic Rhinitis
Yes
N	948	818	729	593	512
Mean	4.07	5.17	5.48	5.59	5.75
No
N	636	566	515	444	372
Mean	4.00	4.81	4.97	5.12	5.26
Previous therapy
ICS only
N	379	345	309	268	228
Mean	4.18	5.32	5.53	5.76	5.90
ICS+LABA
N	1137	983	883	727	613
Mean	3.80	4.86	5.11	5.23	5.43
Age
<30 years
N	297	252	224	190	168
Mean	4.28	5.42	5.76	5.79	5.95
30–50 years
N	661	586	520	423	358
Mean	4.10	5.14	5.40	5.56	5.70
>50 years
N	639	559	510	431	363
Mean	3.87	4.72	4.91	5.05	5.20

The authors apologise for this error.