Coefficient

proportionality

Method of treatment

N

Mean

(Me)

Std. Dev.

(SD)

Std. Error

(SE)

95% Confidence Interval for Mean

Min.

Max.

Lower

Bound

Upper Bound

Before the operative treatment,

k_p

Chevron

209

0.4276

0.1105

0.0077

0.4125

0.4427

0.23

0.81

according to Golden

187

0.4166

0.0866

0.0063

0.4041

0.4291

0.23

0.77

Total

396

0.4224

0.0999

0.0050

0.4125

0.4323

0.23

0.81

After operative treatment,

k_o

Chevron

209

0.6034

0.3740

0.0259

0.5524

0.6544

0.11

2.60

according to Golden

187

0.6476

0.3768

0.0276

0.5933

0.7020

0.00

3.00

Total

396

0.6243

0.3755

0.0189

0.5872

0.6614

0.00

3.00