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. 2012 Feb 29;14(1):e37. doi: 10.2196/jmir.1998

Table 1.

Participant characteristics at baseline across matched and mismatched groups.

Total study population
(n = 803)
Groupa
Match (n = 261) Mismatch (n = 542)
Gender, n(%)
Male 316 (39.4%) 103 (39.5%) 213 (39.3%)
Female 487 (60.7%) 158 (60.5%) 329 (60.7%)
Age (years), mean (SD) 52.4 (11.9) 51.6 (12.3) 52.8 (11.8)
BMIb (kg/m2), mean (SD) 27.3 (6.2) 26.7 (5.3) 27.6 (6.7)
Employment status, n(%)
Unemployed 234 (29.1%) 77 (30%) 157 (29.0%)
Employed 569 (70.9%) 184 (70.5%) 385 (71.0%)
Internet confidence, (n, %)
Low 126 (15.7%) 37 (14%) 89 (16%)
High 677 (84.3%) 224 (85.8%) 453 (83.6%)
Education level, n (%)
Low 173 (21.5%) 57 (22%) 116 (21.4%)
High 630 (78.5%) 204 (78.6%) 426 (78.6%)
Baseline physical activity level, n (%)
Insufficient 352 (43.8%) 109 (41.8%) 243 (44.8%)
Sufficient 451 (56.2%) 152 (58.2%) 299 (55.2%)
Intervention condition, n (%)
Video based 258 (32.1%) 31 (12%) 227 (41.9%)
Text based 262 (32.6%) 159 (60.9%) 103 (19.0%)
Combination 283 (35.2%) 71 (27%) 212 (39.1%)

a No baseline differences were observed between matched and mismatched participants, except for intervention condition (χ2 2,801= 151.3, P < .001).

b Body mass index.