[Retracted] Serum Levels of Mitochondrial Fission- and Fusion-Related Genes of Coal Workers’ Pneumoconiosis and Risk Factor Analysis Based on a Generalized Linear Model

Table 6

Analysis of risk factors for coal workers’ pneumoconiosis.

Variable			Wald	value	95% CI
Educational level
Primary school or below	3.372	0.9313	13.109	0.000	1.547~5.197
Junior high school and above	—	—	—	—	—
Marital status
Married	-3.578	1.7911	3.991	0.046	-7.089~-0.068
Divorced or widowed	—	—	—	—	—
Respiratory protective measures
Yes	-2.266	0.8441	7.210	0.007	-3.921~-0.612
No
Working hours (h/d)
≤8	-1.266	0.7408	2.921	0.087	-2.718~0.186
>8	—	—	—	—	—
Work duration (years/year)
<15	-2.218	0.9416	5.547	0.019	-4.063~-0.372
≥15	—	—	—	—	—
Position
Coal mine drillers	2.032	0.8598	5.583	0.018	0.346~3.717
Coal miners	-1.794	1.1502	2.433	0.119	-4.048~0.460
Auxiliary workers	—	—	—	—	—