Table 4.

Physical work factors, by the proportion of respondents who had stopped smoking at follow-up. In Norwegian nurses' aides.

		Stopped smoking
Baseline work characteristics	N †	n	Row %	P
Moving patients in bed ‡				0.556
0	388	36	9.3
1–4	912	89	9.8
5–9	519	61	11.8
10 or more	315	30	9.5
Supporting patients between bed and chair ‡				0.246
0	353	33	9.3
1–4	953	102	10.7
5–9	525	59	11.2
10 or more	282	20	7.1
Handling heavy objects at work ‡				0.393
0	594	67	11.3
1–4	1163	113	9.7
5–9	229	17	7.4
10 or more	111	10	9.0
Work requires physical endurance				0.417
Never or very seldom	147	15	10.2
Rather seldom	201	23	11.4
Sometimes	555	65	11.7
Rather often	671	60	8.9
Very often or always	627	56	8.9

N = Total number if respondents in each category. n = number of cases in each category. Row % = proportion of cases in each category. ^† The total number of individuals included in these analyses were somewhat lower than the number of individuals who responded to the questionnaire, because not all respondents answered all questions. ^‡ Times per shift.