Table 1.
Personal and housing characteristics by asthma phenotype for 280 First Nation children.
| Variable | Total n = 280 |
Atopic Asthma n = 15 |
Non-Atopic Asthma n = 56 |
No Asthma n = 209 |
p Value # |
|---|---|---|---|---|---|
| Mean ± SD | Mean ± SD | Mean ± SD | Mean ± SD | ||
| Age in years | 10.9 ± 3.1 | 12.4 ± 3.1 | 11.0 ± 3.0 | 10.8 ± 3.1 | 0.13 |
| Crowding index | 1.6 ± 0.7 | 1.5 ± 0.5 | 1.6 ± 0.6 | 1.6 ± 0.7 | 0.76 |
| n (%) | n (%) | n (%) | n (%) | ||
| Sex | |||||
| Male | 126 (45.0) | 10 (66.7) | 30 (53.6) | 86 (41.1) | 0.06 |
| Female | 154 (55.0) | 5 (33.7) | 26 (46.4) | 123 (58.9) | |
| Body mass index | |||||
| Obese | 61 (22.0) | 7 (46.7) | 14 (25.0) | 40 (19.4) | 0.12 |
| Overweight | 87 (31.4) | 4 (26.7) | 19 (33.9) | 64 (31.1) | |
| Normal | 129 (46.6) | 4 (26.7) | 23 (41.1) | 102 (49.5) | |
| Respiratory related infections | |||||
| Yes | 165 (58.9) | 8 (53.3) | 46 (82.1) | 111 (53.1) | <0.001 |
| No | 115 (41.1) | 7 (46.7) | 10 (17.9) | 98 (46.9) | |
| Passive smoking | |||||
| Yes | 154 (55.0) | 10 (66.7) | 36 (64.3) | 108 (51.7) | 0.16 |
| No | 126 (45.0) | 5 (33.3) | 20 (35.7) | 101 (48.3) | |
| Parental history of allergic conditions | |||||
| Yes | 112 (40.0) | 8 (53.3) | 29 (51.8) | 75 (35.9) | 0.05 |
| No | 168 (60.0) | 7 (46.7) | 27 (48.2) | 134 (64.1) | |
| Parental education | |||||
| <Grade 12 | 146 (52.1) | 5 (33.3) | 26 (46.4) | 115 (55.0) | 0.17 |
| ≥Grade 12 | 134 (47.9) | 10 (66.7) | 30 (53.6) | 94 (45.0) | |
| Fuel type | |||||
| Natural gas | 229 (81.8) | 13 (86.7) | 52 (92.9) | 164 (78.5) | 0.04 |
| Other | 51 (18.2) | 2 (13.3) | 4 (7.1) | 45 (21.5) | |
| Air conditioner in home | |||||
| Yes | 90 (32.1) | 5 (33.3) | 18 (32.1) | 67 (32.1) | 0.99 |
| No | 190 (67.9) | 10 (66.7) | 38 (67.9) | 142 (67.9) | |
| Air filter in home | |||||
| Yes | 120 (42.9) | 3 (20.0) | 20 (35.7) | 97 (46.4) | 0.07 |
| No | 160 (57.1) | 12 (80.0) | 36 (64.3) | 112 (53.6) | |
| Humidifier in home | |||||
| Yes | 37 (13.2) | 1 (6.7) | 10 (17.9) | 26 (12.4) | 0.42 |
| No | 243 (86.3) | 14 (93.3) | 46 (82.1) | 183 (87.6) | |
| Dehumidifier in home | |||||
| Yes | 25 (8.9) | 4 (26.7) | 5 (8.9) | 16 (7.7) | 0.05 |
| No | 255 (91.1) | 11 (73.3) | 51 (91.1) | 193 (92.3) | |
| Wood fireplace in home | |||||
| Yes | 8 (2.9) | 1 (6.7) | 1 (1.8) | 6 (2.9) | 0.60 |
| No | 272 (97.1) | 14 (93.3) | 55 (98.2) | 203 (97.1) | |
| Pet cat/dog in home | |||||
| Yes | 137 (48.9) | 7 (46.7) | 28 (50.0) | 102 (48.8) | 0.97 |
| No | 143 (51.1) | 8 (53.3) | 28 (50.0) | 107 (51.2) | |
| Damage caused by dampness | |||||
| Yes | 113 (40.4) | 11 (73.3) | 25 (44.6) | 77 (36.8) | 0.02 |
| No | 167 (59.6) | 4 (26.7) | 31 (55.4) | 132 (63.2) | |
| Signs of mold or mildew in home | |||||
| Yes | 121 (43.2) | 11 (73.3) | 23 (41.1) | 87 (41.6) | 0.05 |
| No | 159 (56.8) | 4 (26.7) | 33 (58.9) | 122 (58.4) | |
| Home dampness past 12 months | |||||
| Yes | 152 (54.3) | 11 (73.3) | 34 (60.7) | 107 (51.2) | 0.14 |
| No | 128 (45.7) | 4 (26.7) | 22 (39.3) | 102 (48.8) |
# For the categorical variables, chi squared test for proportions p value reported and for the continuous variables, F test p value reported.