TABLE 1.
NATIONAL HEALTH AND NUTRITION SURVEY PARTICIPANT CHARACTERISTICS
| Participant Characteristics | Allergic (n = 296) | Nonallergic (n = 1,085) | P Value |
|---|---|---|---|
| Ethnicity, % |
|
|
0.11 |
| White |
99 |
96 |
|
| Black |
1 |
2 |
|
| Other |
0 |
2 |
|
| Sex, % male |
53 |
67 |
<0.05 |
| Highest education, % |
|
|
0.69 |
| Elementary school |
17 |
19 |
|
| High school |
52 |
53 |
|
| Beyond high school |
31 |
28 |
|
| Age, yr |
66 (12)* |
67 (12)* |
0.06 |
| Pack-years |
47 (34)* |
46 (38)* |
0.90 |
| FEV1, % predicted |
77 (22)* |
76 (21)* |
0.60 |
| GOLD stage |
|
|
0.23 |
| I |
46.2 |
50.1 |
|
| II |
40.5 |
39 |
|
| III |
12.5 |
9 |
|
| IV |
0.8 |
1.9 |
|
| Current smoker, % |
45 |
45 |
1 |
| Years since quit if not current smoker |
16.7 (13.1)* |
17.4 (14.1)* |
0.72 |
| Doctor-diagnosed chronic bronchitis, % |
11 |
9.7 |
0.56 |
| Doctor-diagnosed emphysema, % |
10 |
10.4 |
0.92 |
| Medications in the last month, % | |||
| Antihistamines |
5.6 |
2.2 |
0.01 |
| Nasal steroids |
0.5 |
0.5 |
0.96 |
| Oral steroids | 1.7 | 1.2 | 0.53 |
Definition of abbreviation: GOLD = Global Initiative for Chronic Obstructive Lung Disease.
*
Mean (SD).