Table 2.

Association between suspected risk factors and the incidence of dermatophytosis.

	Cases	Person-years	Incidence ratea	HR (95% CI)
				Univariate analysis	Multivariate analysis
Sex
Male	539,449	16,924,327.78	31.8742	1	1
Female	322,391	12,956,197.39	24.8831	0.78 (0.777–0.784)	0.848 (0.843–0.853)
Age
< 30	361,299	13,458,176.72	26.8461	1	1
≥ 30	500,541	16,422,348.45	30.4793	1.137 (1.132–1.142)	1.064 (1.059–1.068)
BMI (kg/m2)
< 18.5	388,377	2,616,765.9	21.7329	0.836 (0.829–0.843)	0.876 (0.868–0.884)
18.5–22.9	2,223,440	14,804,553.51	26.0108	1	1
23–24.9	837,991	5,493,166.73	31.4218	1.207 (1.201–1.214)	1.153 (1.146–1.159)
25–29.9	814,417	2,904,629.43	35.1455	1.35 (1.342–1.357)	1.268 (1.26–1.276)
≥ 30	168,440	1,061,409.6	37.4653	1.436 (1.422–1.451)	1.36 (1.342–1.378)
Elevated waist circumferenceb
No	739,359	26,498,105.14	27.9023	1	1
Yes	122,481	3,382,420.03	36.2111	1.296 (1.288–1.304)	1.057 (1.048–1.065)
Drink
None	311,253	11,517,820.22	27.0236	1	1
Mild	470,110	15,819,909.38	29.7164	1.099 (1.095–1.104)	1.04 (1.035–1.045)
Heavy	80,477	2,542,795.58	31.649	1.171 (1.162–1.18)	1.053 (1.044–1.061)
Exercise
No	745,814	26,253,605.67	28.4081	1	1
Yes	116,026	3,626,919.5	31.9902	1.126 (1.119–1.133)	1.071 (1.064–1.077)

Values are expressed as hazard ratios (95% confidence intervals) using univariate and multivariate Cox proportional hazards regression analyses.

BMI body mass index, CI confidence interval, HR hazard ratio.

^aIncidence rates are expressed in units of per 1000 person-years.

^bElevated waist circumference is defined as a waist circumference of more than 90 cm in men or more than 85 cm in women.