Long-term PM2.5 exposure disrupts corneal epithelial homeostasis by impairing limbal stem/progenitor cells in humans and rat models

Table 1 Demographic characteristics of people subjects

	5-year average PM2.5 concentration
	< 35 µg/m³		≥ 35 µg/m³		Total	Analysis
Characteristic	< 35 µg/m³		≥ 35 µg/m³		Total	Analysis
	N	%	N	%	N	p
Gender
Male	24	52.17	23	53.49	47	0.497
Female	22	47.83	20	46.51	42
Age
18–35	4	8.70	4	9.30	8	0.901
35–59	30	65.22	23	53.49	53
≥ 60	12	26.09	16	37.21	28
Total	46	100.00	43	100.00	89

ISSN: 1743-8977