Femalea
(n = 50; 47.2%)
Malea
(n = 56; 52.8%)
Overalla
(n = 106; 100%)
P-value
PTF morphology-right
Type 1 (widely open) 25 (50) 22 (39.3) 47 (44.3) 0.264b
Type 2 (narrow middle) 13 (26) 15 (26.8) 28 (26.4)
Type 3 (very narrow/closed) 12 (24) 19 (33.9) 31 (29.2)
PTF morphology-left
Type 1 (widely open) 20 (40) 18 (32.1) 38 (35.8) 0.211b
Type 2 (narrow middle) 21 (42) 23 (41.1) 44 (41.5)
Type 3 (very narrow/closed) 9 (18) 15 (26.8) 24 (22.6)

aAll figures are N (%) for PTF morphology.
bNot significant, ordinal logistic regression analysis test (significance level P < 0.05).
PTF = petrotympanic fissure; n = number.