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Genuneit J. Exposure to farming environments in childhood and asthma and wheeze in rural populations: a systematic review with meta-analysis. Pediatr Allergy Immunol 2012: 23: 509–18.

In this article, the references in Table 1 did not cite the correct publications. Please use the citations in the corrected table below.

Table 1. Details of studies included in the meta-analyses
#ReferenceStudy regionSample sizeaAge (yrs)bBirth cohortc
  1. a

    Sample size of the study population that underlies the estimates used in the meta-analysis. Sometimes estimates were from different subpopulations indicated by multiple sample sizes.

  2. b

    Age at baseline for cohort studies. Age ranges were approximated for some studies. More details in online supplement.

  3. c

    Mean birth cohort of the study population approximated from the mean age and study period (or the year of publication if the study period was unknown).

1(3)Switzerland16206–151984
2.1(39)Finland10,66718–241974
3(25)Austria20018–111987
4(40)Germany98355–71991
5(41)Canada9082; 119912–191984
6(42)Canada393<181986
7(26)Switzerland1287151976
8.2(43)Finland5509311966
9.1, 9.2(44)Australia473; 9637–121987
10(27)Sweden7077–81989
11.1, 11.2(36; 45)Austria, Germany, Switzerland8126–131989
12.1(46)Europe625120–441959
12.2(47)France60031–591955
13(48)Finland798113–141991
14(37)New Zealand2937–101993
15.1–15.3(49)Sweden1,316,985171957, 1967, 1977
16(50)USA30906–141990
17(51)Vietnam26415–131992
18(52)USA42474–161993
19(53)Finland7106–131991
20(54)USA6441–171987
21(55)USA13,49014–171985
22.1(9)Europe82635–131992
23(14)UK4767; 8795–111992
24(30)USA3095–111998
25(56)Greece7977–181988
26(57)Canada11587–191988
27(58)The Netherlands179827–641955
28(59)Germany159518–441972
29(60)Canada13,524;0–111988
30.1(61)New Zealand561628–701958
30.2(62)New Zealand18995–171996
31(28)Austria33,8086–101997
32(63)Canada477; 2125–91993
33(64)USA25,81420–881941
34.1, 34.2(65)The Netherlands87718–651964
35(29)Sweden126116–201990
36.1–36.5(66–69)Europe103,2196–121997
37.1, 37.2(70)France54,01840–651937
38.1(71)Denmark99916–261972
38.2(72)Denmark122 cases, 116 controls16–261972
39(73)Canada17045–111985

The author apologizes for this error.