Table 1

Sex-and age-category strata of mean ± SD steps/day

T1
Steps/day
 T2
Steps/day
 Pearson's
r
 Spearman's
r
 Δ = T2 – T1
Steps/day
(95% CI)
Youngest-29.9 years
Males (n = 77)
 9,610 ± 4,558
 9,471 ± 4,247
 .650*
 .651*
 -139 ± 3,695
(-977, 700)
Females (n = 103)
 8,076 ± 3,324
 7,981 ± 3,322
 .567*
 .566*
 -94 ± 3,091
(-698, 510)
30–39.9 years
Males (n = 148)
 8,973 ± 3,430
 8,932 ± 3,209
 .627*
 .541*
 -41 ± 2,876
(-509, 427)
Females (n = 245)
 8,859 ± 3,177
 9,174 ± 3,091
 .555*
 .523*
 315 ± 2,957
(-57, 687)
40–49.9 years
Males (n = 118)
 9,067 ± 3,720
 8,660 ± 3,186
 .610*
 .560*
 -407 ± 3,088
(-970, 156)
Females (n = 165)
 9,017 ± 2,936
 9,170 ± 3,080
 .530*
 .543*
 153 ± 2,920
(-296, 602)
50–59.9 years
Males (n = 89)
 7,833 ± 2,908
 7,733 ± 3,410
 .529*
 .533*
 -100 ± 3,097
(-752, 553)
Females (n = 111)
 8,749 ± 3,702
 8,342 ± 3,189
 .606*
 .645*
 -407 ± 3,091
(-988, 174)
60-oldest
Males (n = 59)
 7,982 ± 3,261
 7,206 ± 3,298
 .596*
 .542*
 -776 ± 2,946
(-1,544, -8)
Females (n = 60)
 7,139 ± 2,780
 6,732 ± 3,260
 .238
 .304*
 -408 ± 3,747
(-1,376, 561)
Total sample
Males (n = 491)
 8,769 ± 3,635
 8,527 ± 3,494
 .621*
 .572*
 -243 ± 3,112
(-519, 33)
Females (n = 684)
 8,610 ± 3,240
 8,644 ± 3,235
 .550*
 .551*
 34 ± 3,071
(-197, 264)

Note: 19 was the youngest in males, 20 in females; 78 was the oldest in males, 71 in females.*correlation is significant at the 0.01 level (2-tailed)

Tudor-Locke et al. International Journal of Behavioral Nutrition and Physical Activity 2008 5:39   doi:10.1186/1479-5868-5-39

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