Table 1. Prevalence of chronic otitis media according to the general characteristics of KNHNES participants.
| COM weighted*, % (SE) | ||||
|---|---|---|---|---|
| Characteristics | Unweighted total number | No | Yes | P value |
| Overall | 16063 | 96.2 (0.2) | 3.8 (0.2) | |
| Affected ear | ||||
| Right | 98.5 (0.1) | 1.5 (0.1) | ||
| Left | 98.6 (0.1) | 1.4 (0.1) | ||
| Both | 99.1 (0.1) | 0.9 (0.1) | ||
| Age(year) | <0.0001 | |||
| 20–29 | 1797 | 98.9 (0.3) | 1.1 (0.3) | |
| 30–39 | 3154 | 98.1 (0.3) | 1.9 (0.3) | |
| 40–49 | 2989 | 97.0 (0.4) | 3.0 (0.4) | |
| 50–59 | 3105 | 94.2 (0.6) | 5.8 (0.6) | |
| 60–69 | 2632 | 93.3 (0.6) | 6.7 (0.6) | |
| ≥70 | 2386 | 91.5 (0.7) | 8.5 (0.7) | |
| Sex | 0.0287 | |||
| Male | 6830 | 96.7 (0.3) | 3.3 (0.3) | |
| female | 9233 | 95.8 (0.3) | 4.2 (0.3) | |
| Education | <0.0001 | |||
| ≤Middle school | 5492 | 93.1 (0.4) | 6.9 (0.4) | |
| ≥High school | 10140 | 97.6 (0.2) | 2.4 (0.2) | |
| Missing | 431 | |||
| Income | 0.1732 | |||
| <25% | 3891 | 96.0 (0.4) | 4.0 (0.4) | |
| 25–50% | 3959 | 96.5 (0.3) | 3.5 (0.3) | |
| 50–75% | 4008 | 95.8 (0.4) | 4.2 (0.4) | |
| ≥75% | 4012 | 96.8 (0.4) | 3.2 (0.4) | |
| missing | 193 | |||
| Occupation | 0.7594 | |||
| white collar | 12767 | 96.4 (0.2) | 3.6 (0.2) | |
| blue collar | 2828 | 96.2 (0.4) | 3.8 (0.4) | |
| Residence | 0.0239 | |||
| Rural | 12780 | 96.5 (0.2) | 3.5 (0.2) | |
| Urban | 3283 | 95.4 (0.4) | 4.6 (0.4) | |
| Body mass index(kg/m2) | 0.3783 | |||
| <25 | 10857 | 96.1 (0.2) | 3.9 (0.2) | |
| ≥25 | 5151 | 96.5 (0.3) | 3.5 (0.3) | |
| Missing | 55 | |||
| Noise | ||||
| Earphone use in noisy situation | <0.0001 | |||
| Yes | 1376 | 98.4 (0.4) | 1.6 (0.4) | |
| No | 14627 | 96.0 (0.2) | 4.0 (0.2) | |
| Missing | 60 | |||
| Temporary exposure to noise | 0.1384 | |||
| Yes | 3347 | 96.7 (0.4) | 3.3 (0.4) | |
| No | 12643 | 96.1 (0.2) | 3.9 (0.2) | |
| Smoking status | 0.0605 | |||
| No | 12398 | 96.1 (0.2) | 3.9 (0.2) | |
| Yes | 3245 | 96.9 (0.4) | 3.1 (0.4) | |
| Missing | 420 | |||
| Alcohol consumption | 0.0681 | |||
| No | 7242 | 95.9 (0.3) | 4.1 (0.3) | |
| Yes | 8335 | 96.6 (0.2) | 3.4 (0.2) | |
| Missing | 486 | |||
| Household members(persons) | <0.0001 | |||
| 1–2 | 5234 | 94.2 (0.4) | 5.8 (0.4) | |
| 3–4 | 8609 | 97.1 (0.2) | 2.9 (0.2) | |
| 5–6 | 2052 | 96.7 (0.5) | 3.3 (0.5) | |
| ≥7 | 146 | 98.1 (1.0) | 1.9 (1.0) | |
| Missing | 22 | |||
| Subjective health status | <0.0001 | |||
| Very good | 703 | 97.2 (0.7) | 2.8 (0.7) | |
| Good | 4560 | 97.1 (0.3) | 2.9 (0.3) | |
| Average | 7491 | 96.5 (0.3) | 3.5 (0.3) | |
| Poor | 2413 | 94.7 (0.6) | 5.3 (0.6) | |
| Very poor | 490 | 91.9 (1.3) | 8.1 (1.3) | |
| Missing | 406 | |||
COM, chronic otitis media; SE, standard error; KNHANES, Korean national health and nutrition examination survey;
*weighted for the multistage sampling design of KNHANES 2010~2012