Table 4 Chi-square test for dichotomy expression of non-metric dental traits
From: Study of twenty non-metric dental crown traits using ASUDAS system in NCR (India) population
Categories | N | Sex | Chi-square | P value* | |||
|---|---|---|---|---|---|---|---|
Female (N (%)) | Male (N (%)) | ||||||
1 | Winging | Absent | 167 | 85 (85) | 82 (82) | 0.327 | 0.568 |
Present | 33 | 15 (15) | 18 (18) | ||||
2 | Shoveling-1 | Absent | 167 | 89 (89) | 78 (78) | 4.391 | 0.036 |
Present | 33 | 11 (11) | 22 (22) | ||||
3 | Double shoveling | Absent | 142 | 64 (64) | 78 (78) | 4.76 | 0.029 |
Present | 58 | 36 (36) | 22 (22) | ||||
4 | Shoveling-2 | Absent | 152 | 78 (78) | 74 (74) | 0.439 | 0.508 |
Present | 48 | 22 (22) | 26 (26) | ||||
5 | Interrupted groove | Absent | 83 | 41 (41) | 42 (42) | 0.021 | 0.886 |
Present | 117 | 59 (59) | 58 (58) | ||||
6 | Tuberculum dentale | Absent | 87 | 44 (44) | 43 (43) | 0.02 | 0.887 |
Present | 113 | 56 (56) | 57 (57) | ||||
7 | Mesial ridge (lingual) | Absent | 113 | 63 (63) | 50 (50) | 3.438 | 0.064 |
Present | 87 | 37 (37) | 50 (50) | ||||
8 | Premolar accessory cusp-4 | Absent | 175 | 90 (90) | 85 (85) | 1.143 | 0.285 |
Present | 25 | 10 (10) | 15 (15) | ||||
9 | Premolar accessory cusp-5 | Absent | 166 | 81 (81) | 85 (85) | 0.567 | 0.451 |
Present | 34 | 19 (19) | 15 (15) | ||||
10 | Cusp of Carabelli | Absent | 149 | 76 (76) | 73 (73) | 0.237 | 0.626 |
Present | 51 | 24 (24) | 27 (27) | ||||
11 | Hypocone absence | Absent | 132 | 61 (61) | 71 (71) | 2.228 | 0.136 |
Present | 68 | 39 (39) | 29 (29) | ||||
12 | Lingual cusp variation | Absent | 42 | 17 (17) | 25 (25) | 1.929 | 0.165 |
Present | 158 | 83 (83) | 75 (75) | ||||
13 | Sixth cusp | Absent | 155 | 73 (73) | 82 (82) | 2.323 | 0.128 |
Present | 45 | 27 (27) | 18 (18) | ||||
14 | Seventh cusp | Absent | 101 | 44 (44) | 57 (57) | 3.38 | 0.066 |
Present | 99 | 56 (56) | 43 (43) | ||||
15 | Deflecting wrinkle | Absent | 144 | 71 (71) | 73 (73) | 0.099 | 0.753 |
Present | 56 | 29 (29) | 27 (27) | ||||
16 | Protostylid | Absent | 85 | 38 (38) | 47 (47) | 1.657 | 0.198 |
Present | 115 | 62 (62) | 53 (53) | ||||
17 | Distal trigonid crest | Absent | 121 | 52 (52) | 69 (69) | 6.047 | 0.014 |
Present | 79 | 48 (48) | 31 (31) | ||||
18 | Hypoconulid absence | Absent | 46 | 21 (21) | 25 (25) | 0.452 | 0.502 |
Present | 154 | 79 (79) | 75 (75) | ||||
19 | Cusp number presence | Absent | 34 | 20 (20) | 14 (14) | 1.276 | 0.259 |
Present | 166 | 80 (80) | 86 (86) | ||||
20 | Y groove pattern presence | Absent | 174 | 85 (85) | 89 (89) | 0.707 | 0.4 |
Present | 26 | 15 (15) | 11 (11) | ||||