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Table 1 Mean, standard deviation and significance for the variables dental hygiene and disinfection control of dental environment by sex and cross infection group

From: Oral hygiene habits and possible transmission of COVID-19 among cohabitants

Variables Man Woman p Cross infection Non cross infection p
N =145 N = 157 N = 170 N = 132
M (SD) M (SD) M (SD) M (SD)
N (%) N (%) N (%) N (%)
Dental hygiene
Toothbrushing 3.4 (1.3) 3.6 (1.2) 0.304 3.5 (1.3) 3.6 (1.2) 0.541
Flossing 3.0 (1.3) 3.1 (1.3) 0.461 3.0 (1.3) 3.2 (1.3) 0.072
Oral rinse 2.8 (1.3) 3.0 (1.2) 0.107 2.8 (1.3) 3.0 (1.3) 0.323
Tongue-brushing 3.0 (1.2) 3.0 (1.3) 0.847 2.8 (1.2) 3.2 (1.3) 0.029*
Environmental care and disinfection control
Shared toothbrush use       
Yes 4 (2.8%) 5 (3.2%) 0.828 162 (95.3%) 131 (99.2%) 0.045*
Not 141 (97.2%) 152 (96.8%) 8 (4.7%) 1 (0.8%)
Sharing brush container       
Yes 99 (68.3%) 95 (60.5%) 0.159 127 (74.7%) 65 (50.8%) 0.000**
Not 46 (31.7%) 62 (39.5%) 43 (25.3%) 67 (49.2%)
Sharing of toothpaste       
Yes 76 (52.4%) 76 (48.4%) 0.487 99 (58.2%) 53 (40.2%) 0.002**
Not 69 (47.6%) 81 (51.6%) 71 (41.8%) 79 (59.8%)
Brush in vertical position       
Yes 120 (82.8%) 123 (78.3%) 0.334 143 (84.1%) 100 (75.8%) 0.069
Not 25 (17.2%) 34 (21.7%) 27 (15.9%) 32 (24.2%)
Capped brush       
Yes 86 (59.3%) 75 (52.2%) 0.216 93 (54.7%) 75 (56.8%) 0.714
Not 59 (40.7%) 82 (47.8%) 77 (45.3%) 57 (43.2%)
Brush disinfection with bleach       
Yes 6 (4.1%) 20 (12.7%) 0.008** 8 (4.7%) 18 (13.6%) 0.006**
Not 139 (95.9%) 137 (87.3%) 162 (95.3%) 114 (86.4%)
Toilet lid closure       
Yes 43 (29.7%) 67 (42.7%) 0.019* 42 (24.7%) 68 (51.5%) 0.000**
Not 102 (70.3%) 90 (57.3%) 128 (75.3%) 64 (48.5%)
Brush change after PCR + test       
Yes 115 (79.3%) 138 (87.9%) 0.043* 136 (80%) 117 (88.6%) 0.043*
Not 30 (20.7%) 19 (12.1%) 34 (20%) 15 (11.4%)