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Table 5 Correlation between palatal bone thickness and palatal bone density in different groups

From: Gender and growth variation in palatal bone thickness and density for mini-implant placement

Experimental groups

Number of values (XY pairs)

Correlation coefficient

95% confidence interval

P value

Significant

Canine and first premolar

 Growing male

99

− 0.2582

“− 0.4335 to − 0.06405”

0.0099

Yes

 Growing female

105

− 0.3799

“− 0.5327 to − 0.2030”

< 0.0001

Yes

 Non-growing male

74

0.00231

“− 0.2263 to 0.2307”

0.9844

No

 Non-growing female

81

− 0.3

“− 0.4865 to − 0.08735”

0.0065

Yes

First premolar and second premolar

 Growing male

99

0.06289

“− 0.1362 to 0.2571”

0.5363

No

 Growing female

105

− 0.3251

“− 0.4864 to − 0.1423”

< 0.0001

Yes

 Non-growing male

74

− 0.2713

“− 0.4706 to − 0.04561”

0.0194

Yes

 Non-growing female

81

− 0.352

“− 0.5297 to − 0.1448”

0.0013

Yes

First premolar and second premolar

 Growing male

99

− 0.2687

“− 0.4426 to − 0.07530”

0.0072

Yes

 Growing female

105

− 0.4163

“− 0.5630 to − 0.2441”

< 0.0001

Yes

 Non-growing male

74

− 0.4364

“− 0.6046 to − 0.2309”

0.0001

Yes

 Non-growing female

81

− 0.4959

“− 0.6445 to − 0.3112”

< 0.0001

Yes

First molar and second molar

 Growing male

99

− 0.3938

“− 0.5486 to − 0.2129”

< 0.0001

Yes

 Growing female

105

− 0.4315

“− 0.5756 to − 0.2615”

< 0.0001

Yes

 Non-growing male

74

− 0.3707

“− 0.5524 to − 0.1553”

0.0012

Yes

 Non-growing female

81

− 0.1825

“− 0.3855 to 0.03738”

0.103

No