Leonardo is thought to have used the golden ratio, a geometric proportion regarded as the key to creating aesthetically pleasing art, when painting the Mona Lisa.
These restorations are intended to correct diastemas, but they are oversized and do not fit correct smile proportions regarding crown size and gingival tissues.
The proportions regarding the recurrence of headache attacks by primary headache subtype were as follows: 59.0 % (n = 49) for probable migraine, 34.7 % (n = 33) for probable TTH, 42.9 % (n = 3) for probable TAC, and 24.0 % (n = 6) for probable OPHD; the proportion of the headache recurrence was significantly higher for migraine than for non-migraine primary headache (59.0 vs. 33.1 %; P < 0.001).
There were no statistically significant differences in the proportions regarding gender, performance status, stage, histology or previous treatment between the two (<75 vs ⩾75 years) groups.
The 2- sample Z test was used to compare proportions regarding values above normal range among the different categories of parental education for both genders.
The two different age groups also showed similar proportions regarding symptoms of burnout, depression and anxiety at baseline (data not shown).
We also found differences in the proportions regarding directionality to the TSS (upstream/downstream): age-demethylated sites were more frequent within −5 to +5 kb and age-methylated sites within +5 to +50 kb downstream of the TSS.
As an additional strength of this study, could be considered, the finding that the proportions regarding educational level in our sample were similar with those observed for adult Greek population: 52.5% with low education, 31.7% with moderate, 15.8% with higher education and 52.4%, 32.8%, 14.8%, respectively [ 11].
Preliminary studies [ 3, 21, 22] allowed considering that diabetic patients will be distributed in proportions 4/3/1 regarding the 3 categories: no SMI/SMI without CAD/SMI with CAD.
From a preventive viewpoint, attributable proportions become regarded as "avoidable proportions" of a disease, except for obviously non-modifiable factors like age or gender.
