Table 6 Management factors influencing request of inspection: results of the fractional probit regression analysis

 Once a year

0.312^a

0.374^a

0.579^a

(0.148,0.429)

(0.199,0.548)

(0.407,0.751)

 2 times / year

0.399^a

0.543^a

0.69^a

(0.229，0.568)

(0.358,0.726)

(0.504,0.876)

 3 times / year

0.391^a

0.578^a

0.813^a

(0.209，0.573)

(0.375,0.781)

(0.603,1.022)

 4 times or more / year

0.246^a

0.454^a

0.515^a

(0.064，0.429)

(0.265,0.643)

(0.313,0,717)

 Once a year

−0.076

−0.173^a

−0.041

(−0.212,0.06)

(−0.318,-0.027)

(− 0.185,0.104)

 2 times / year

−0.129

− 0.311^a

− 0.151

(− 0.275,0.018)

(− 0.48,-0.142)

(−0.32,0.017)

 3 times / year

0.15

−0.308^a

0.08

(−0.313,0.127)

(−0.488,-0.128)

(− 0.281,0.122)

 4 times or more / year

0.051

−0.109

0.107

(−0.101,0.204)

(−0.273,0.055)

(− 0.091,0.305)

 Once a month

0.153^a

0.218^a

0.192^a

(0.082,0.224)

(0.125,0.31)

(0.09,0.294)

 2 times / month

0.01

0.206^a

0.145

(−0.017,0.213)

(0.069,0.343)

(− 0.008,0.299)

 3 times / month

0.1

0.143

0.032

(−0.05,0.241)

(−0.041,0.327)

(− 0.148,0.212)

 4 times or more / month

−0.084

0.171^a

0.179^a

(−0.22,0.052)

(0.05,0.292)

(0.017,0.34)

 guidance

0.32^a

0.069

0.238^a

(0.237,0.403)

(−0.029,0.166)

(0.124,0.352)

 Informatization

0.104^a

0.355^a

0.281^a

(0.009,0.199)

(0.257,0.453)

(0.159,0.403)

 guidance

0.246^a

(0.15,0.342)

 Once a month

0.187^a

(0.123,0.25)

 2 times / month

−0.22^a

(−0.354,-0.086)

 3 times / month

−0.063

(−0.242,0.116)

 4 times or more / month

−0.059

(−0.195,0.078)

 Once a year

0.237^a

(0.159,0.315)

 2 times / year

0.272^a

(0.134,0.411)

 3 times / year

0.264^a

(0.118,0.410)

 4 times or more / year

0.573^a

(0.431,0.715)

 Once a year

0.016

(−0.0451,0.083)

 2 times / year

0.147^a

(0.015,0.279)

 3 times / year

0.047

(−0.087,0.18)

 4 times or more / year

−0.15^a

(−0.274,-0.027)

 guidance

0.022

(−0.138,0.183)

 Once a year

0.311^a

(0.094,0.529)

 2 times / year

0.187

(−0.094,0.468)

 3 times / year

0.654^a

(0.239,1.069)

 4 times or more / year

1.382^a

(0.972,1.791)

 Once a year

0.067

(−0.107,0.241)

 2 times / year

0.090

(− 0.166,0.345)

 3 times / year

−0.624^a

(−1.051,-0.197)

 4 times or more / year

−0.364

(− 0.734,0.006)

 guidance

−0.503

(−1.383,0.375)

 Once a month

0.199^a

(0.007,0.391)

 2 times / month

0.052

(−0.471,0.575)

 3 times / month

0.289^a

(0.052,0.527)

 4 times or more / month

0.423^a

(0.191,0.654)

 Once a year

0.514

(−0.065,1.092)

 2 times / year

1.073^a

(0.482,1.665)

 3 times / year

0.764^a

(0.114,1.413)

 4 times or more / year

0.909^a

(0.354,1.464)

 Once a year

0.837^a

(0.178,1.495)

 2 times / year

0.526

(−0.157,1.209)

 3 times / year

1.008^a

(0.345,1.671)

 4 times or more / year

0.729^a

(0.043,1.415)