Association between smoking intensity and duration and tooth loss among Finnish middle-aged adults: The Northern Finland Birth Cohort 1966 Project

Table 1 Basic characteristics of the study population and number of missing teeth per participant by smoking

	Current smoker^a			Former smoker^b			Never smoker^c			All
	(n = 424)			(n = 448)			(n = 877)			(n = 1946)
	Participants	Number of missing teeth		Participants	Number of missing teeth		Participants	Number of missing teeth		Participants	Number of missing teeth
	%	Mean	≥1: %	%	Mean	≥ 1: %	%	Mean	≥ 1: %	%	Mean	≥ 1: %
Gender (n = 1946)
Male	50	2.1	63	54	1.6	57	41	1.1	45	47	1.5	53
Female	50	1.6	62	46	1.2	53	59	1.2	50	53	1.3	53
Education (n = 1865)
Basic	8	2.8	82	6	1.8	62	3	1.8	65	5	2.2	70
Secondary	48	2.1	67	42	1.8	63	28	1.5	59	36	1.7	63
Higher	44	1.3	55	52	1.1	48	69	1.0	42	59	1.1	46
Tooth brushing (n = 1944)
Once daily or less	40	2.0	65	39	1.7	61	26	1.4	52	34	1.7	58
At least twice daily	60	1.7	61	61	1.2	51	74	1.0	46	66	1.2	51
Plaque (n = 1935)
Yes	81	1.9	63	80	1.4	55	78	1.1	47	79	1.4	54
No	19	1.7	59	20	1.5	53	22	1.1	49	21	1.3	52
Diabetes (n = 1919)
Yes	4	1.7	65	2	1.7	43	2	2.3	56	2	1.9	58
No	96	1.8	62	98	1.4	55	98	1.1	48	98	1.4	53
Alcohol use, g/wk (n = 1891)
Alcohol drinker^e	19	2.2	68	13	1.4	47	6	1.3	48	10	1.7	57
Light drinker^d	81	1.7	61	87	1.4	56	94	1.1	48	90	1.3	53
Total (n = 1946)	100	1.8	62	100	1.4	55	100	1.1	48	100	1.4	53

^aThose who smoked at the time of the survey
^bThose who have smoked at least for a year but did not smoke at the time of the survey
^cThose who had never smoked, or have smoked less than a year and did not smoke at the time of the survey
^d0–230 g/wk for men and 0–150 g/wk for women
^e > 230 g/wk for men and >150 g/wk for women

ISSN: 1471-2458