Table 1

Travel and bypass distance based on subjects’ characteristics and region

VariableFrequencyTravel distance (km)Bypass distance (km)
No (%)MedianMean (SD)MedianMean (SD)
Total15 846 (100)1.819.41 (34.75)0.838.40 (34.62)
Sex
 Men3655 (23.1)1.979.63 (33.37)0.988.61 (33.29)
 Women12 191 (76.9)1.779.35 (35.15)0.818.34 (35.01)
Age groupvm** bm**
 20–443876 (24.5)1.4412.35 (50.21)0.6911.47 (50.19)
 45–655947 (37.5)1.776.51 (19.47)0.915.65 (19.35)
 >656023 (38.0)2.1510.40 (34.16)0.919.15 (33.93)
Educational attainmentvm** bm**
 <Elementary school4174 (26.3)2.018.55 (25.2)0.797.24 (24.89)
 Middle/high school7984 (50.4)1.617.78 (29.2)0.786.78 (29.07)
 >College3688 (23.3)2.2613.96 (51.0)1.2413.06 (50.94)
Trisection of equivalent income
 T15282 (33.3)1.9510.11 (35.92)0.928.94 (35.74)
 T25284 (33.3)1.678.70 (32.86)0.697.64 (32.69)
 T35280 (33.3)1.949.44 (35.38)0.958.63 (35.35)
Type of dental treatmentvm** bm**
 Others12 699 (80.1)1.598.23 (31.38)0.717.23 (31.27)
 Implant/orthodontic1379 (8.7)3.3414.69 (41.66)2.4113.76 (41.48)
 Prosthesis1768 (11.2)2.2613.83 (48.41)1.4612.66 (48.25)
Geographical regionvm*
 Urban district10 000 (63.1)1.548.71 (37.48)0.868.07 (37.41)
 Small city4578 (28.9)2.059.86 (31.13)0.748.64 (30.99)
 Rural county1268 (8.0)8.4313.32 (22.14)0.9610.18 (21.67)
  • *P<0.05; **P<0.001.

  • bm, mean of the bypass distance; vm, mean of the visit distance.