Increased risk of thyroid cancer in female residents nearby nuclear power plants in Korea: was it due to detection bias?

Table 1 Numbers and Follow-up durations of sub-cohort group in KREEC-R study^a

Region	Sex	Numbers	Follow-up period (person-year)
Exposed	Male	4470	43,455.4
Exposed	Female	6839	57,658.7
Control-1	Male	4424	40,158.9
Control-1	Female	5860	48,487.6
Control-2	Male	6040	45,904.3
Control-2	Female	8393	67,674.3
Total	Male	14,934	129,518.6
Total	Female	21,092	173,820.6

ISSN: 2052-4374