Table 3

 Distribution of 2.5 year olds in Quebec longitudinal study of child development (QLSCD 1998–2002) according to the score for lack of money for basic needs* (n = 1946)

%95% CI
*During the past 12 months. †Coefficient of variation between 15% and 25%; interpret with caution. ‡Coefficient of variation above 25%; imprecise estimation, provided only for indicative purposes. The coefficient of variation is a measure of dispersion of the data around the mean. It is the ratio of the standard deviation to the mean of a distribution. It does not have any metric and is usually expressed in percentage. Large coefficients of variation indicate a large dispersion of data around the mean and a loss of accuracy of the mean estimate (BMDP Statistical Software, Los Angeles, 1990).
Overall score for lack of money
Score  = 076.073.8 to 78.1
Score  = 1–214.512.7 to 16.3
Score  = 3 or more9.58.1 to 10.9
Lack of money to pay the rent or the mortgage*
Did not experience any lack of money87.986.3 to 89.5
A small lack of money8.77.4 to 10.1
A rather significant lack of money2.5†1.8 to 3.4
A very significant lack of money0.8‡0.5 to 1.4
Lack of money to pay for the electricity, heating, or hot water*
Did not experience any lack of money85.783.9 to 87.4
A small lack of money10.79.2 to 12.2
A rather significant lack of money2.82.0 to 3.7
A very significant lack of money0.9‡0.5 to 1.5
Lack of money to buy prescription medications*
Did not experience any lack of money95.494.2 to 96.5
A small lack of money3.22.4 to 4.2
A rather significant lack of money0.9‡0.4 to 1.7
A very significant lack of money0.5‡0.2 to 1.0
Lack of money to pay for important expenses (clothing, transportation, etc)*
Did not experience any lack of money82.880.9 to 84.6
A small lack of money13.311.6 to 15.0
A rather significant lack of money3.0†2.2 to 4.1
A very significant lack of money1.0‡0.5 to 1.6