Table 2.
Summary of Statistical Analyses
| No. | Analysis | Statistical Methods | P Value |
|---|---|---|---|
| I. Age-matched with or without | |||
| 1 | Serum immunoreactivity | Independent-samples t-test | 0.151 |
| 2 | Ocular Demodex infestation | Independent-samples t-test | 0.805 |
| 3 | Facial rosacea | Independent-samples t-test | 0.868 |
| 4 | Dry eye | Independent-samples t-test | 0.706 |
| II. Age correlation between Demodex counts in | |||
| 5 | All patients | Pearson bivariate correlation | 0.153 |
| 6 | Positive serum immunoreactivity | Pearson bivariate correlation | 0.159 |
| 7 | Negative serum immunoreactivity | Pearson bivariate correlation | 0.847 |
| 8 | Ocular Demodex infestation | Pearson bivariate correlation | 0.099 |
| 9 | Negative facial rosacea | Pearson bivariate correlation | 0.163 |
| 10 | Negative facial rosacea | Pearson bivariate correlation | 0.988 |
| III. Gender-matched with or without | |||
| 11 | Serum immunoreactivity | Pearson chi-square analysis | 0.012 |
| 12 | Ocular Demodex infestation | Pearson chi-square analysis | 0.024 |
| 13 | Facial rosacea | Pearson chi-square analysis | 0.008 |
| 14 | Dry eye | Pearson chi-square analysis | 0.977 |
| IV. Serum immunoreactivity correlation with | |||
| 15 | Ocular Demodex infestation | Pearson chi-square analysis | 0.048 |
| 16 | Facial rosacea | Pearson chi-square analysis | 0.009 |
| 17 | Lid margin inflammation | Pearson chi-square analysis | 0.040 |
| 18 | Inferior bulbar conjunctival inflammation | Pearson chi-square analysis | 0.573 |
| V. Ocular Demodex infestation/counts correlation with | |||
| 19 | Facial rosacea | Pearson chi-square analysis | 0.075 |
| 20 | Lid margin inflammation | Pearson chi-square analysis | 0.073 |
| 21 | Inferior bulbar conjunctival inflammation | Pearson chi-square analysis | 0.599 |
| 22 | Counts with serum immunoreactivity | Independent-samples t-test | 0.014 |
| 23 | Counts with facial rosacea | Independent-samples t-test | 0.014 |
| VI. Other correlations | |||
| 24 | Dry Eye vs serum immunoreactivity | Pearson chi-square analysis | 0.657 |
| 25 | Dry Eye vs ocular Demodex infestation | Pearson chi-square analysis | 0.002 |
| 26 | Dry Eye vs facial rosacea | Pearson chi-square analysis | 0.361 |
| 27 | Facial rosacea vs lid margin inflammation | Pearson chi-square analysis | 0.016 |
| 28 | Facial rosacea vs inferior bulbar conjunctival inflammation | Pearson chi-square analysis | 0.728 |
| 29 | Lid margin inflammation vs inferior bulbar conjunctival inflammation | Pearson chi-square analysis | 0.162 |
| 30 | Cch vs serum immunoreactivity | Pearson chi-square analysis | 0.852 |
| 31 | Cch vs ocular Demodex infestation | Pearson chi-square analysis | 0.425 |
| 32 | Cch vs facial rosacea | Pearson chi-square analysis | 0.535 |
Cch = conjunctivochalasis.