Research Article

Glaucoma Characteristics and Influencing Factors during the COVID-19 Pandemic in the Huizhou Region

Table 4

Potential risk factors for the development of AACG in the AACG group compared with the N-AACG group during phase A.

Potential risk factorsAACG group (N = 21)N-AACG group (N = 69)χ2/t

Sex, n (%)6.5790.010b
 Female17 (33.33)34 (66.67)
 Male4 (10.26)35 (89.74)
Age, years (mean ± SD)65.86 ± 8.6358.58 ± 17.01−1.8830.063a
COVID-19 status, n (%)18.378<0.001c
 Negative1 (2.44)40 (97.56)
 Positive20 (40.82)29 (59.18)
Glaucoma started after testing positive for COVID-19, n (%)20.649<0.001b
 No7 (10.77)58 (89.23)
 Yes14 (56.00)11 (44.00)
Adverse behavior, n (%)0.233c
 No20 (22.47)69 (77.53)
 Yes1 (100.00)0(0.0)
History of medication use, n (%)6.9880.008b
 No9 (15.00)51 (85.00)
 Yes12 (40.00)18 (60.00)
Monocular/binocular involvement, n (%)0.0340.853b
 Monocular9 (24.32)28 (75.68)
 Binocular12 (22.64)41 (77.36)
Non-COVID-19 systemic diseases, n (%)1.8600.173b
 No17 (27.42)45 (72.58)
 Yes4 (14.29)24 (85.71)

Note. n (%), Number of patients with glaucoma; %: ratio of the patients. SD = standard deviation. An independent-sample t-test (a) for age, Pearson’s chi-square test (b), and Fisher’s exact test (c) for categorical variables were used to test the difference between the AACG and N-AACG groups. AACG, acute angle-closure glaucoma; N-AACG, nonacute angle-closure glaucoma.