Table 3 Means, standard deviations of disease incidence before and during COVID-19 and their differences by age.
From: Changes in mean and variance of ophthalmic disease incidences during COVID-19 pandemic in Korea
Diseases | Before COVID-19 | During COVID-19 | P-values of difference | |||
|---|---|---|---|---|---|---|
Mean | SD | Mean | SD | Mean | Variance | |
Age 0–19 years | ||||||
Infectious and inflammatory ophthalmic diseases | ||||||
Inflammatory eyelid disease | 61,843.8 | 8492.2 | 61,490.4 | 7164.9 | 0.892 | 0.506 |
Conjunctivitis | 149,469.5 | 44,804.2 | 105,531.9 | 31,028.2 | 0.003* | 0.810 |
Scleritis & episcleritis | 361.7 | 113.9 | 295.5 | 111.0 | 0.062 | 0.551 |
Keratitis | 23,744.7 | 4356.4 | 17,123.7 | 2841.5 | < 0.001* | 0.183 |
Anterior uveitis | 427.4 | 41.9 | 409.3 | 54.0 | 0.228 | 0.794 |
Intermediate and posterior uveitis | 38.2 | 6.6 | 35.7 | 6.8 | 0.139 | 0.997 |
Endophthalmitis | 16.5 | 6.6 | 24.5 | 4.8 | 0.001* | 0.194 |
Optic neuropathy | 99.9 | 20.0 | 96.3 | 12.9 | 0.935 | 0.372 |
Non-infectious and non-inflammatory ophthalmic diseases | ||||||
Cataract | 246.2 | 56.4 | 130.7 | 99.2 | < 0.001* | 0.804 |
Retinal detachment | 454.7 | 132.6 | 416.9 | 90.0 | 0.636 | 0.083 |
Retinal vascular occlusion | 15.0 | 4.8 | 14.7 | 4.2 | 0.957 | 0.824 |
Diabetic retinopathy | 343.8 | 58.6 | 289.3 | 50.0 | 0.004* | 0.595 |
Glaucoma | 2183.7 | 344.3 | 1938.7 | 390.7 | 0.102 | 0.001 |
Traumatic ophthalmic disease | 11,681.8 | 2093.1 | 8223.7 | 1299.4 | < 0.001* | 0.162 |
Age 20–59 years | ||||||
Infectious and inflammatory ophthalmic diseases | ||||||
Inflammatory eyelid disease | 120,258.9 | 10,560.2 | 119,998.5 | 9315.3 | 0.914 | 0.507 |
Conjunctivitis | 238,466.3 | 38,373.3 | 205,182.8 | 34,599.5 | 0.017* | 0.593 |
Scleritis & episcleritis | 5110.2 | 298.4 | 4761.4 | 388.9 | 0.005* | 0.878 |
Keratitis | 118,487.9 | 6855.6 | 97,716.6 | 11,022.8 | < 0.001* | 0.065 |
Anterior uveitis | 8612.7 | 547.2 | 8638.4 | 538.4 | 0.766 | 0.554 |
Intermediate and posterior uveitis | 1047.3 | 55.1 | 991.6 | 59.0 | 0.009* | 0.555 |
Endophthalmitis | 315.1 | 17.9 | 395.7 | 69.2 | < 0.001* | 0.678 |
Optic neuropathy | 570.5 | 39.1 | 566.8 | 57.4 | 0.766 | 0.075 |
Non-infectious and non-inflammatory ophthalmic diseases | ||||||
Cataract | 43,479.7 | 3015.4 | 40,497.7 | 7934.4 | 0.665 | 0.042† |
Retinal detachment | 8543.2 | 591.0 | 9182.2 | 612.7 | 0.001* | 0.847 |
Retinal vascular occlusion | 4414.7 | 282.9 | 4493.3 | 226.5 | 0.379 | 0.695 |
Diabetic retinopathy | 27,099.0 | 1451.1 | 25,043.3 | 1464.0 | < 0.001* | 0.192 |
Glaucoma | 71,391.0 | 3646.4 | 71,496.3 | 4205.9 | 0.002* | 0.787 |
Traumatic ophthalmic disease | 18,521.8 | 981.0 | 16,411.7 | 765.3 | < 0.001* | 0.059 |
Age 60 + years | ||||||
Infectious and inflammatory ophthalmic diseases | ||||||
Inflammatory eyelid disease | 120,258.9 | 10,560.2 | 119,998.5 | 9315.3 | 0.001* | 0.452 |
Conjunctivitis | 238,466.3 | 38,373.3 | 205,182.8 | 34,599.5 | 0.685 | 0.498 |
Scleritis & episcleritis | 5110.2 | 298.4 | 4761.4 | 388.9 | 0.725 | 0.314 |
Keratitis | 118,487.9 | 6855.6 | 97,716.6 | 11,022.8 | 0.021* | 0.545 |
Anterior uveitis | 8612.7 | 547.2 | 8638.4 | 538.4 | 0.552 | 0.472 |
Intermediate and posterior uveitis | 1047.3 | 55.1 | 991.6 | 59.0 | 0.715 | 0.943 |
Endophthalmitis | 315.1 | 17.9 | 395.7 | 69.2 | 0.078 | 0.009† |
Optic neuropathy | 570.5 | 39.1 | 566.8 | 57.4 | 0.037* | 0.933 |
Non-infectious and non-inflammatory ophthalmic diseases | ||||||
Cataract | 43,479.7 | 3015.4 | 40,497.7 | 7934.4 | 0.005* | 0.949 |
Retinal detachment | 8543.2 | 591.0 | 9182.2 | 612.7 | 0.003* | 0.975 |
Retinal vascular occlusion | 4414.7 | 282.9 | 4493.3 | 226.5 | 0.001* | 0.616 |
Diabetic retinopathy | 27,099.0 | 1451.1 | 25,043.3 | 1464.0 | 0.07 | 0.876 |
Glaucoma | 123,661.6 | 8539.8 | 134,359.0 | 7810.0 | 0.013* | 0.257 |
Traumatic ophthalmic disease | 18,521.8 | 981.0 | 16,411.7 | 765.3 | 0.386 | 0.956 |
