Table 1: Error corrected, conclusions the same / CMAJ

Error corrected, conclusions the same

Table 1: Percentage of newborns of low birth weight,* by data source, Ontario, 1987 to 1995

Data source Year; % of newborns with low birth weight Ratio 1994-95 to 1987 (and 95% CI†) 1987 to 1994-95

1987 1988 1989 1990 1991 1992 1993 1994 1995 chi²‡ p value

Vital statistics 5.36 5.46 5.29 5.35 5.55 5.52 5.87 5.93 5.98 1.11 (1.08-1.15) 124.7 < 0.01

Hospital data 5.21 5.40 5.32 5.31 5.48 5.44 5.66 5.76 - 1.11 (1.07-1.14) 53.1 < 0.01

*Live births of infants weighing 500 to 2499 g as a proportion of all live births of infants with stated birth weight of 500 g or more.
†CI = confidence interval.
‡chi² (1 degree of freedom) for linear trend in proportion.

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| CMAJ September 15, 1997 (vol 157, no 6) / JAMC le 15 septembre 1997 (vol 157, no 6) |

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*Table 1: Percentage of newborns of low birth weight, by data source, Ontario, 1987 to 1995**
Data source	Year; % of newborns with low birth weight									Ratio 1994-95 to 1987 (and 95% CI†)	1987 to 1994-95
Data source	1987	1988	1989	1990	1991	1992	1993	1994	1995	Ratio 1994-95 to 1987 (and 95% CI†)	chi²‡	p value
Vital statistics	5.36	5.46	5.29	5.35	5.55	5.52	5.87	5.93	5.98	1.11 (1.08-1.15)	124.7	< 0.01
Hospital data	5.21	5.40	5.32	5.31	5.48	5.44	5.66	5.76	-	1.11 (1.07-1.14)	53.1	< 0.01
*Live births of infants weighing 500 to 2499 g as a proportion of all live births of infants with stated birth weight of 500 g or more. †CI = confidence interval. ‡chi² (1 degree of freedom) for linear trend in proportion.