Table 1.

Summary of demographic features of CFS patients in South Korea

Items	Total	Male	Female	F/M ratio
Entire population	50,812,880 ± 522,785	25,389,442 ± 227,238	25,423,437 ± 295,787	–
Mean N. of new CFS patients	22,720 ± 3,284	9,122 ± 1,152	13,598 ± 2176	1.49-folds
Incidence rate (per 105) (95% confidence interval) In 2010 vs. 2020 year (Change during 11-yrs)	44.71 ± 6.10 [40.57; 48.76] 32.43 vs. 49.47 (1.53-folds)	35.93 ± 4.30 [33.01; 38.79] 26.97 vs. 37.90 (1.41-folds)	53.49 ± 8.05 [48.00; 58.82] 37.90 vs. 60.98 (1.61-folds)	1.49-folds* [1.43; 1.54]
Mean N. of recorded CFS patients	29,320 ± 6,456	11,747 ± 2,344	17,573 ± 4,132	1.50-folds
Prevalence rate (per 105) (95% confidence interval) In 2010 vs. 2020 year (Change during 11-yrs)	57.70 ± 12.20 [49.40; 65.79] 36.15 vs. 76.10 (1.94-folds)	46.27 ± 8.88 [40.23; 52.17] 30.29 vs. 53.80 (1.78-folds)	69.12 ± 15.55 [58.52; 79.41] 42.03 vs. 86.31 (2.05-folds)	1.49-folds* [1.44; 1.53]
Mean treatment duration (month)	9.13 [4.63; 13.63]	8.15 [1.73; 14.57]	9.80 [3.41; 16.19]	1.20-folds

The mean data resulted from 11-year recorded cases between 2010 and 2020. *, P < 0.001