Table 1.
Characteristics of participants with dry eye symptom data, the Beaver Dam Offspring Study 2005–2008
| Characteristic | N (%) Overall |
N (%) <50 years of age |
N (%) ≥50 years of age |
p-value |
|---|---|---|---|---|
| N | 3275 | 1764 | 1511 | |
| Female | 1789 (54.6) | 983 (55.7) | 806 (53.3) | 0.17 |
| Male | 1486 (45.4) | 781 (44.3) | 705 (46.7) | |
| Age | ||||
| 21–34 | 179 (5.5) | 179 (10.1) | NA | NA |
| 35–44 | 931 (28.4) | 931 (52.8) | NA | |
| 45–54 | 1227 (37.5) | 654 (37.1) | 573 (37.9) | |
| 55–64 | 710 (21.7) | NA | 710 (47.0) | |
| 65–84 | 228 (7.0) | NA | 228 (15.1) | |
| Education (Years) | ||||
| <12 | 75 (2.3) | 31 (1.8) | 42 (2.9) | <0.0001 |
| 12 | 902 (27.8) | 439 (24.9) | 463 (30.6) | |
| 13–15 | 1088 (33.5) | 597 (34.0) | 491 (32.9) | |
| 16+ | 1183 (36.4) | 688 (39.2) | 495 (33.2) | |
| Smoking History | ||||
| Never | 1751 (53.8) | 1011 (57.6) | 740 (49.3) | <0.0001 |
| Past | 927 (28.5) | 392 (22.4) | 535 (35.7) | |
| Current | 576 (17.7) | 351 (20.0) | 225 (15.0) | |
| Alcohol Consumption (grams of ethanol per week) | ||||
| 0 | 348 (10.7) | 155 (8.8) | 193 (12.9) | <0.0001 |
| 1–14 | 1323 (40.7) | 690 (39.3) | 633 (42.2) | |
| 15–74 | 766 (23.5) | 449 (25.6) | 317 (21.1) | |
| 75–140 | 392 (12.0) | 231 (13.2) | 161 (10.7) | |
| >140 | 426 (13.1) | 229 (13.1) | 197 (13.1) | |
| Body Mass Index | ||||
| <25 | 607 (21.6) | 418 (27.3) | 189 (14.8) | <0.0001 |
| 25–29.9 | 947 (33.7) | 519 (33.9) | 428 (33.5) | |
| 30+ | 1254 (44.7) | 593 (38.8) | 661 (51.7) |