Table 4

Bivariate logistic regression among urbanicity score, urban variables and asthma definitions

IndicatorsWheeze everCurrent wheezeDoctor diagnosis
OR95% CIP valueOR95% CIP valueOR95% CIP value
Urbanicity score ‡1.033*(1.0 to 1.07)0.051.032†(0.98 to 1.08)0.156†1.06(1.02 to 1.09)0.001
Population size§1.04(0.96 to 1.12)0.3560.96(0.76 to 1.15)0.6601.14(1.04 to 1.24)0.006
Population density¶1.02(0.96 to 1.08)0.5330.98(0.90 to 1.06)0.7021.07(0.99 to 1.15)0.082
Non-agriculture activities**1.04(0.99 to 1.07)0.0781.01(0.95 to 1.07)0.8041.05(0.99 to 1.12)0.116
Secondary education**1.10(0.98 to 1.20)0.091.15(1.0 to 1.30)0.041.18(1.05 to 1.31)0.006
Commercial activities**1.06(0.99 to 1.11)0.0571.05(0.97 to 1.11)0.2211.11(1.03 to 1.18)0.007
Concrete housing**1.12(1.03 to 1.20)0.0081.10(0.98 to 1.19)0.11.15(1.00 to 1.31)0.054
Mobile phone access**1.09(0.96 to 1.22)0.1541.14(0.95 to 1.32)0.1331.24(1.02 to 1.47)0.034
Internet access**1.21(0.92 to 1.49)0.1531.16(0.76 to 1.57)0.4291.46(1.08 to 1.86)0.019
Computer access**1.15(0.99 to 1.32)0.0641.25(1.01 to 1.44)0.0141.32(1.14 to 1.50)0.001
Satellite TV access**1.04(0.99 to 1.08)0.1091.06(0.99 to 1.12)0.0551.08(1.04 to 1.13)0.001
Pavement street**1.06(0.98 to 1.13)0.1261.06(0.96 to 1.14)0.2241.08(0.96 to 1.19)0.185
Sewage system**1.12(1.03 to 1.21)0.0051.03(0.92 to 1.13)0.6141.16(1.02 to 1.29)0.02
Electricity**1.01(0.91 to 1.10)0.8431.13(0.92 to 1.32)0.221.20(0.94 to 1.46)0.137
Educational institutions1.01(0.92 to 1.17)0.4430.99(0.96 to 1.02)0.5761.02(1.01 to 1.04)0.007
Health facilities
 Health centre versus none1.13(0.81 to 1.54)0.4671.12(0.83 to 1.51)0.4620.98(0.65 to 1.48)0.922
 Hospital versus none1.16(0.91 to 1.46)0.2180.87(0.46 to 1.62)0.6561.45(1.04 to 2.03)0.027
Road connectivity
 Yes versus no1.41(1.05 to 1.88)0.0211.22(0.82 to 1.8)0.3331.19(0.71 to 1.98)0.505
Geographical division
 Community versus countryside1.19(0.79 to 1.76)0.3950.81(0.41 to 1.58)0.531.01(0.5 to 2.02)0.977
 Town versus countryside1.008(0.75 to 1.34)0.9551.08(0.82 to 1.41)0.5620.98(0.66 to 1.45)0.921
 City versus countryside1.17(0.91 to 1.48)0.2140.81(0.41 to 1.55)0.5261.46(1.03 to 2.07)0.034
Urban closeness
 Distant versus urban0.82(0.61 to 1.1)0.1870.84(0.56 to 1.26)0.3940.62(0.43 to 0.87)0.006
 Periphery versus urban1.31(0.97 to 1.74)0.0761.43(0.97 to 2.1)0.0670.88(0.54 to 1.49)0.591
  • *Adjusted by sex, environmental tabaco smoke, farm animals and bronchitis.

  • †Adjusted by household overcrowding, farm animals,bronchitis, and atopy.

  • ‡Increase by point (range 0–10).

  • §Increase by 10 000 population.

  • ¶increase by 1000 population /km2.

  • **increase by 10 percentual points.