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. 2009 Nov 13;6:75. doi: 10.1186/1479-5868-6-75

Table 4.

Part 2 (2003/4 dataset): Linear trend across three PAI categories for continuous and categorical variables

Subsistence and Physical Activity level

Low (PAI score ≤2)
(n = 27)
Medium (PAI score = 3)
(n = 79)
High (PAI score = 4)
(n = 32)
Significance level

Anthropometry and fitness
Body mass index (kg.m-2) 28.1 (25.8 to 30.4) 27.1 (25.8 to 28.4) 25.2 (23.1 to 27.3) 0.0617
Waist circumference (cm) 86 (81 to 91) 84 (81 to 87) 80 (75 to 84) 0.0703
Sum of four skinfolds (mm) 1 74 (60 to 90) 67 (59 to 75) 55 (45 to 66) 0.0322 8
VO2max (mlO2.kg-1.min-1) 25.7 (23.8 to 27.5) 5 26.2 (25.1 to 27.3) 6 28.7 (27.0 to 30.5) 7 0.0190 8
Resting blood pressure
Systolic blood pressure (mmHg) 119 (114 to 125) 120 (116 to 123) 120 (115 to 125) 0.8387
Diastolic blood pressure (mmHg) 78 (74 to 82) 77 (74 to 79) 78 (74 to 81) 0.9611
Accelerometry
Counts.day-1 (× 1000) 364 (317 to 411) 409 (381 to 436) 457 (414 to 501) 0.0044 8
Steps.day-1 (× 1000) 12.3 (11.0 to 13.6) 13.6 (12.9 to 14.4) 14.3 (13.1 to 15.5) 0.0265 8
Sedentary activity (min.day-1) 828 (789 to 866) 793 (770 to 815) 781 (746 to 817) 0.0806
Light activity (min.day-1) 387 (354 to 420) 396 (377 to 416) 377 (346 to 408) 0.6755
Moderate-to-vigorous activity (min.day-1) 225 (198 to 253) 251 (235 to 267) 282 (256 to 307) 0.0040 8
Adherence to public health guidelines 2
ACSM/CDC Guidelines 3 96.0 (80.5 to 99.3) 98.5 (91.8 to 99.7) 93.8 (83.2 to 97.9) 0.5678
IOM Guidelines 4 51.9 (34.0 to 69.3) 70.9 (60.1 to 79.8) 81.3 (64.7 to 91.1) 0.0157 8

Values are reported as age-adjusted mean (95%CI) except for 1 age-adjusted geometric mean (95%CI) and 2 % (95%CI); 3 ACSM/CDC guidelines: moderate-to-vigorous PA of 30 minutes.day-1, at least 5 days.week-1, accumulated in bouts of ≥10 minutes; 4 IOM guidelines: moderate-to-vigorous PA of 60 minutes.day-1, at least 5 days.week-1, accumulated in bouts of ≥10 minutes; 5 n = 26; 5 n = 75; 7 n = 30; 8 significant linear trend for low-to-high active