Table 3.

Age-standardized prevalence ratio of health problems and work-related health problems between Vietnamese male migrant workers and the reference population in the Republic of Korea

	aSPR (95% CI) for health problem∗	aSPR (95% CI) for work-related health problem†
Hearing problem	12.33 (0.04–20.01)	13.22 (8.07–20.4)
Skin problem	12.29 (7.02–19.94)	13.49 (8.24–20.82)
Low back pain	8.87 (6.77–11.42)	8.4 (6.5–10.69)
Upper extremity pain	3.1 (2.32–4.07)	3.29 (2.51–4.24)
Lower extremity pain	4.78 (3.49–6.4)	5 (3.72–6.58)
Headache	6.29 (4.45–8.64)	6.61 (4.82–8.84)
General fatigue	2.96 (2.16–3.97)	3.24 (2.42–4.25)

aSPR, age-standardized prevalence ratio; CI, confidence interval.

If the confidence interval of the aSPR (age-standardized prevalence ratio) does not include 1, this indicates a statistically significant difference in the prevalence of each variable between Vietnamese male workers and the Korean reference population.

^∗This variable represents the responses to the question asking whether respondents experienced any of the listed health problems during the past 12 months.

^†This variable represents the combined responses to the question regarding the presence of any health problems experienced over the last 12 months, along with the indication of whether respondents attribute their health problems to their job.