Table 4 Associations between GERD grading, which were divided into NERD and reflux oesophagitis (grade A-D) subgroups, and the evaluated items
From: Oral soft tissue disorders are associated with gastroesophageal reflux disease: retrospective study
Variable | Category | GERD n = 105 | *P value | ||
|---|---|---|---|---|---|
|  | Total | NERD n = 62 | A-D n = 43 |  | |
Age (years) |  | 66.4 ± 13.0 | 66.7 ± 10.8 | 65.9 ± 15.6 | NA |
Sex | M | 57 (54.3%) | 38 (61.3%) | 19 (44.2%) | 0.111 |
BMI (kg/cm2) |  | 22.9 ± 3.6 | 22.6 ± 3.4 | 23.4 ± 3.8 | 0.294 |
Saxon test | |||||
 Salivary flow volume (g/2 min.) |  | 1.7 ± 1.5 | 1.5 ± 1.1 | 1.9 ± 2.0 | 0.211 |
RSST | |||||
 Swallowing frequency (times/30 s) |  | 4.0 ± 2.1 | 3.9 ± 2.1 | 4.2 ± 2.1 | 0.584 |
 Time to first swallow (s) |  | 4.9 ± 4.8 | 4.3 ± 3.7 | 5.7 ± 6.0 | 0.161 |
 Teeth; DMF indices (%) |  | 70.2 ± 23.7 | 71.5 ± 22.5 | 68.5 ± 25.4 | 0.535 |
 PMA gingival indexes |  | 1.6 ± 2.0 | 1.5 ± 2.0 | 1.8 ± 2.0 | 0.424 |
 OHI-S |  | 1.4 ± 1.5 | 1.2 ± 1.3 | 1.7 ± 1.7 | 0.118 |
Inflammatory oral mucosal regions | Normal | 89 (84.8%) | 48 (77.4%) | 41 (95.3%) | 0.010 |
Mild inflammation | 6 (5.7%) | 4 (6.5%) | 2 (4.7%) | ||
Severe inflammation | 10 (9.5%) | 10 (16.1%) | 0 (0.0%) | ||