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Table 3
Changes, by category, in smoking from 1994/1995 to 2004/2005, Canada and provinces


                                          Non-smokers in 2004/2005 Smokers in 2004/2005 Several changes in smoking
  Number  % Number  % Number  %
Non-smokers in 1994/1995  
Canada 12,899,222 61.7 930,436 4.4 1,216,686 5.8
Newfoundland and Labrador 256,702 59.7 18,609 E 4.3 E 28,572 E 6.6 E
Prince Edward Island 55,222 58.1 4,438 E 4.7 E 5,728 E 6.0 E
Nova Scotia 403,445 59.7 19,798 E 2.9 E 31,744 E 4.7 E
New Brunswick 341,235 61.8 25,341 E 4.6 E 25,481 E 4.6 E
Quebec 3,013,236 57.1 214,339 E 4.1 E 271,454 5.1
Ontario 4,930,403 63.3 359,050 4.6 510,686 6.6
Manitoba 498,769 66.0 34,256 E 4.5 E 36,590 E 4.8 E
Saskatchewan 407,396 60.4 25,105 E 3.7 E 33,990 E 5.0 E
Alberta 1,230,373 62.4 114,973 E 5.8 E 127,166 6.5
British Columbia 1,762,442 65.7 114,527 E 4.3 E 145,276 E 5.4 E
Smokers in 1994/1995  
Canada 1,808,900 8.7 2,792,327 13.4 1,263,231 6.0
Newfoundland and Labrador 39,585 9.2 59,727 13.9 26,831 E 6.2 E
Prince Edward Island 10,013 10.5 13,910 14.6 5,795 E 6.1 E
Nova Scotia 53,420 E 7.9 118,906 17.6 49,026 E 7.2 E
New Brunswick 53,557 9.7 76,227 13.8 30,266 E 5.5 E
Quebec 621,112 11.8 799,321 15.1 358,681 6.8
Ontario 602,952 7.7 951,423 12.2 440,041 5.6
Manitoba 57,474 E 7.6 E 94,668 12.5 33,486 E 4.4 E
Saskatchewan 59,474 8.8 93,498 13.9 55,198 E 8.2 E
Alberta 111,673 5.7 274,096 13.9 112,341 E 5.7 E
British Columbia 199,643 7.4 310,550 11.6 151,565 5.6

1. The table shows changes in smoking of the 1994/1995 household population aged 12 and over every 2 years from cycle 1 to cycle 6 of the National Population Health Survey. Population, age, sex, Canada and province are based on the first survey cycle (cycle 1) in 1994/1995.
2. The table excludes persons who died or who were institutionalized after cycle 1 survey interview in 1994/1995. Estimated number of persons who have died: 287 persons after cycle 2, 599 persons after cycle 3, 957 persons after cycle 4, 1,279 persons after cycle 5 and 1,640 persons after cycle 6. These data are not all confirmed yet with the Canadian Vital Statistics Database. Persons living in an institution are excluded because they are not asked certain questions. Estimated number of persons who have been institutionalized: 62 persons at cycle 2, 114 persons at cycle 3, 135 persons at cycle 4, 161 persons at cycle 5 and 144 persons at cycle 6.
3. The table also excludes children under 12 and non-response (missing values), that is, "not applicable", "don't know", "refusal" and "not stated".
4. No estimates for smoking are provided for 1994/1995; what is shown instead are the changes in smoking. For estimates on smoking in 1994/1995, please refer to Health Indicators CANSIM table 104-0027, "Non-medical determinants of health, Health behaviours".
5. Percentages are based on the population with a specific characteristic (one category) in a given cycle as the numerator divided by the total population in 1994/1995 having all possible characteristics (all categories) as the denominator, excluding missing values.
6. Bootstrapping techniques were used to produce the coefficient of variation (CV) and 95% confidence intervals (CIs).
7. Data with a coefficient of variation (CV) from 16.6% to 33.3% are identified by an (E) and should be interpreted with caution.
8. Data with a coefficient of variation (CV) greater than 33.3% were suppressed (F) due to extreme sampling variability.
9. Changes in smoking of the 1994/1995 population during each consecutive survey cycle from 1994/1995 to 2004/2005 are based on the 2004/2005 longitudinal full cycle 1 to cycle 6 subset of respondents (from 2004/2005 longitudinal data file). This subset contains all panel members with a complete (full) response in cycle 1 (1994/1995), cycle 2 (1996/1997), cycle 3 (1998/1999), cycle 4 (2000/2001), cycle 5 (2002/2003) and cycle 6 (2004-2005). Number of respondents for this table (excluding missing values): 8,385.
Note(s): When comparing estimates, it is important to use confidence intervals to determine if differences between values are statistically significant. Confidence intervals describe sampling variability and give an indication of the precision of a given estimate. Please note that confidence intervals and coefficient of variations are provided in the CANSIM tables.
Source(s): Statistics Canada, National Population Health Survey, 2004/2005 longitudinal data file (CANSIM table 104-7006).
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