Table III.
Adjusted odds ratios [AORs (95% CIs)] for hay fever in adults*, NHIS 1997–2013, by season
| Season | EHE95 Categories | Ptrend | AOR (95% CI) | Percent |
|---|---|---|---|---|
| Spring | <0.01 | |||
| Q1 (0–2 days)# | 1.00 | 32.19 | ||
| Q2 (3–4 days) | 1.02 (0.98–1.06) | 20.49 | ||
| Q3 (5–8 days) | 1.04 (1.00–1.07) | 28.25 | ||
| Q4 (≥ 9 days) | 1.07 (1.03–1.12) | 19.07 | ||
| Summer | >0.05 | |||
| Q1 (0–2 days)# | 1.00 | 41.46 | ||
| Q2 (3–4 days) | 1.01 (0.97–1.05) | 14.51 | ||
| Q3 (5–8 days) | 1.02 (0.99–1.06) | 21.09 | ||
| Q4 (≥9 days) | 1.04 (1.00–1.07) | 22.94 | ||
| Fall | >0.05 | |||
| Q1 (0–2 days)# | 1.00 | 35.14 | ||
| Q2 (3–4 days) | 1.01 (0.97–1.04) | 19.99 | ||
| Q3 (5–8 days) | 1.00 (0.97–1.04) | 29.63 | ||
| Q4 (≥9 days) | 1.02 (0.98–1.07) | 15.24 | ||
| Winter | <0.01 | |||
| Q1 (0–2 days)# | 1.00 | 32.72 | ||
| Q2 (3–4 days) | 0.95 (0.92–0.99) | 18.55 | ||
| Q3 (5–8 days) | 0.98 (0.94–1.01) | 28.84 | ||
| Q4 (≥9 days) | 1.05 (1.01–1.09) | 19.88 |
Adjusted for sex, age, race/ethnicity, education, family income as percent of poverty threshold, urban-rural classification, and month of interview.
#
Reference Category
*
Includes sample adults 18 years and older with complete data for analytic covariates.
All percentages were weighted using NHIS survey weights.
EHE95: Extreme heat events – days where the daily TMAX value exceeded the county and calendar month specific 95th percentile threshold, calculated using 30 year of baseline data.