Table 2 Prevalence in % (n) of own and friends' smoking behaviour
1990 | 1991 | 1992 | 1993 | 1995 | |
|---|---|---|---|---|---|
Smoking status | χ2 = 388.77, df = 9* | χ2 = 406.00, df = 9* | χ2 = 398.55, df = 9* | χ2 = 359.20, df = 9* | |
Non-smoker | 88 (781) | 76 (717) | 65 (590) | 66 (463) | 52 (404) |
LT 1 time/week | 7 (63) | 12 (111) | 12 (111) | 8 (55) | 11 (83) |
Every week | 2 (14) | 4 (39) | 6 (54) | 5 (33) | 6 (48) |
Every day | 3 (29) | 9 (82) | 18 (160) | 22 (154) | 31 (241) |
NA | (354) | (292) | (326) | (536) | (465) |
Best friend's smoking status | χ2 = 84.74, df = 1* | χ2 = 78.48, df = 1* | |||
Yes | 11 (94) | 34 (304) | 48 (372) | ||
No | 89 (785) | 66 (592) | 52 (399) | ||
NA | (362) | (345) | (470) | ||
Friends' smoking status | χ2 = 123.62, df = 16* | χ2 = 169.95, df = 16* | |||
None | 73 (646) | 34 (308) | 11 (83) | ||
Less than half | 20 (177) | 35 (316) | 36 (282) | ||
About half | 3 (24) | 15 (135) | 21 (163) | ||
More than half | 1 (12) | 7 (62) | 15 (115) | ||
Almost all | 3 (23) | 10 (91) | 17 (134) | ||
NA | (359) | (329) | (464) | ||