Table 5.
Mean length of residence (years) in current home, by age-group, quartile of residential H2S exposure, and whether ever diagnosed as having asthma, for study participants, Rotorua, New Zealand, 2008-10.
| Age group in years | Quartile of residential H2S exposure |
|||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Number of participants (N) | Never diagnosed with asthma |
Ever diagnosed with asthma |
||||||||
| 1 | 2 | 3 | 4 | Total | 1 | 2 | 3 | 4 | Total | |
| 18 to <25 | 4.3 | 8.0 | 5.7 | 9.0 | 6.1 | 8.0 | 9.2 | 6.7 | 4.9 | 7.6 |
| N | 23 | 11 | 13 | 8 | 55 | 12 | 10 | 10 | 5 | 37 |
| 25 to <35 | 3.5 | 5.8 | 5.1 | 5.6 | 5.0 | 3.4 | 3.2 | 3.4 | 5.3 | 3.7 |
| N | 32 | 37 | 35 | 27 | 131 | 21 | 13 | 15 | 11 | 60 |
| 35 to <45 | 6.6 | 6.1 | 7.0 | 7.2 | 6.7 | 6.6 | 6.0 | 5.9 | 3.3 | 5.5 |
| N | 73 | 78 | 65 | 72 | 288 | 30 | 28 | 24 | 25 | 107 |
| 45 to <55 | 10.6 | 12.5 | 8.3 | 7.5 | 9.6 | 8.8 | 11.5 | 8.5 | 7.2 | 9.0 |
| N | 91 | 88 | 104 | 92 | 375 | 30 | 24 | 31 | 21 | 106 |
| 55-65 | 12.8 | 13.1 | 12.3 | 11.1 | 12.2 | 15.0 | 12.0 | 14.3 | 12.4 | 13.1 |
| N | 83 | 92 | 95 | 120 | 390 | 15 | 27 | 17 | 28 | 87 |
| Total | 9.0 | 10.1 | 8.8 | 8.7 | 9.1 | 7.9 | 8.8 | 7.9 | 7.4 | 8.0 |
| N | 302 | 306 | 312 | 319 | 1,239 | 108 | 102 | 97 | 90 | 397 |