Not all categories shown for most variables, missing values not reported In Figure 1, mean z-values for BISF-W subscores and the total score are shown by study group with 95% CI, restricted to women with partners for better comparability.
For most variables, missing values were present in less than 5% of the subjects, and for no variable did they exceed 8.5%.
The agreement between baseline questionnaire and its repeat after 3 weeks was high for most variables (κ values >0.75) (Manjer et al, 2002).
Complete data were available for most variables; missing values were less than one percent except for time in pool, length of labour, birth position, hands on or off at delivery, and perineal outcome where missing values were between 1.5 to 2.6percentt.
Most dichotomous variables values were coded as numbers (0=no, 1=yes) and blanks for missing values.
On contrary, groundwater composition of tap waters was remarkably homogeneous (CV < 50%; except Na+) and most variables had similar values for mean and median, reflecting primarily the long flow lines and dispersive mixing that may have smoothed out any temporal fluctuations in the groundwater composition (Mazor et al. 1993; Dhar et al. 2008).
Still, the codes are relatively sparse and most variables take significant values in only a small number of codes.
Completeness of the data was adequate for most variables (eg, missing values <4% for height and weight; <2% for admission blood pressure and heart rate; <0.2% for risk factors or cardiovascular history; GRACE score calculated in 94.5%).
Among the 377 variables, the mean value of C across simulations ranged from 0.500 to 0.589, and for most variables, the average value of C was less than 0.550.
The sample consisted of 840 individual ratings (42 clinicians and 20 referrals) but most variables had some missing values (confer Table 1).> -wrap-foot> (N = number of observations).
