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. 2020 Apr 26;17(9):2996. doi: 10.3390/ijerph17092996

Table 1.

Demographic information of participants stratified by site and group.

Demographic Characteristic BanKok BanKlang Total
Asthma (n = 42) Non-Asthma (n = 42) Asthma (n = 9) Non- Asthma (n = 9) Asthma (n = 51) Non- Asthma (n = 51)
Age (years)
24–46 14 14 1 0 15 14
47–68 25 25 7 8 32 33
≥ 68 3 3 1 1 4 4
Mean ± SD 51.5 ± 12.1 51.5 ± 11.3 58.8 ± 6.8 57.8 ± 8.6 52.8 ± 11.6 52.8 ± 11.0
Gender
Male 17 18 4 3 21 21
Female 25 24 5 6 30 30
Education
Primary 34 33 6 7 40 40
Secondary 1 5 1 1 2 6
High school 7 4 1 1 8 5
Income (unit: Thai Baht)
1000–5699 22 31 6 5 28 36
5700–10,399 18 11 3 3 21 14
≥ 10,400 7 0 0 0 7 0
Mean ± SD 6095.2 ± 3621.1 4542.9 ± 2474.6 4433.3 ± 3651.0 6444.4 ± 4186.6 5801.9 ± 3646.2 4878.4 ± 2891.7
Smoking
None 33 30 7 5 40 35
Ex-smoke 1 2 1 2 2 4
Smoker 8 10 1 2 9 12
Frequency of asthma symptom
1 time per week 4 - 2 - 6 -
1 time per month 10 - 2 - 12 -
1 time per six months 28 - 5 - 33 -