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. 2012 Jan 20;66(11):1071–1078. doi: 10.1136/jech-2011-200626

Table 1.

Mean and SD for continuous measures and numbers and percentages (%) for dichotomous and categorical measures for the intervention (n=367) versus control group (n=363) and for completers (n=575) versus non-completers (n=155)

Study characteristics Total study population (n=730)
Intervention group (n=367) Control group (n=363) Completers (n=575) Non-completers (n=155)
Female, n (%) 274 (74.7) 277 (76.3) 429 (74.6) 122 (78.7)
Age (years), mean (SD) 52.5 (4.8) 52.3 (4.9) 52.5 (4.9) 52.0 (4.7)
Partner (yes), n (%) 268 (73.0) 281 (77.4) 436 (75.8) 113 (72.9)
Chronic diseases (yes), n (%) 207 (59.1) 217 (57.0) 326 (56.7) 98 (63.2)
Smoking (yes), n (%) 38 (10.4) 40 (11.0) 55 (9.6) 23 (14.8)
Education level, n (%)
 Low 42 (11.4) 32 (8.8) 55 (9.6) 19 (12.3)
 Intermediate 100 (27.3) 110 (30.3) 162 (28.2) 48 (31.0)
 High 225 (61.3) 221 (60.9) 358 (62.3) 88 (56.8)
Working hours per week, mean (SD) 30.4 (7.3) 29.8 (7.0) 30.2 (6.6) 30.0 (7.9)
Irregular working hours, n (%)
 Yes 44 (12.0) 52 (14.3) 69 (12.0) 28 (18.1)*
 No 323 (88.0) 311 (85.7) 506 (88.0) 127 (81.9)
*

Significant difference (p=0.042) between completers and non-completers.

Differences between intervention and control group and between completers and non-completers were tested using independent t tests for continuous measures and Pearson's χ2 tests for dichotomous and categorical measures.

%, proportion of total group.