Table 2

Associations between the parental strategies used to overcome bedwetting in children at 7½ years (n=1258)

Lifting child out of bed to use toiletRestricting drinks before bedtimeRegular daytime toilet tripsRewarding child for being dryShowing displeasure when child wets bedUsing night-time protection pants/nappiesMedication for bedwettingBedwetting alarm
Restricting drinks0.5091.000
Daytime toilet trips0.2950.4131.000
Showing displeasure0.2360.4560.3230.3451.000
Protection pants−0.038−0.1510.2310.2490.0401.000
Bedwetting alarm0.050−0.0990.2300.492−0.0700.2300.1131.000
  • The associations between strategies are tetrachoric correlation coefficients. These are correlation coefficients of binary variables. The tetrachoric correlation coefficient provides an estimate of what the correlation would be if the variables were measured on a continuous scale. The size of the tetrachoric correlation coefficient can be interpreted in the same way as a correlation coefficient between two continuous variables, that is, ‘0’ indicates no correlation and ‘1’ indicates perfect correlation.

  • All coefficients were computed on the baseline sample.