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Table 4 Criterion validity (spearman rank and kappa coefficient)a and physical activity characteristics (mean and 95% CI)b of IMS participants by gender and urban/rural status.

From: Evaluation of the Indian Migration Study Physical Activity Questionnaire (IMS-PAQ): a cross-sectional study

 

Total Activity 1

Light Activity 2

Moderate/Vigorous Physical Activity 2

 

Questionnaire

(MET hr/day)

Accelerometer

(total counts per day)

Ρ

Kappa

Questionnaire

(min/day)

Accelerometer

(min/day)

ρ

Kappa

Questionnaire

(min/day)

Accelerometer

(min/day)

ρ

Kappa

Total sample

(n = 157)

32.3

(31.6 - 33.1)

340,506

(318,676 - 363,336)

0.41**

0.34**

362

(341 - 381)

392

(379 - 406)

0.17*

0.08

128

(113 - 146)

26

(22 - 30)

0.48**

0.32**

Urban

(n = 115)

32.0

(31.2 - 32.9)

334,853

(308,396 - 361,310)

 

0.33*

361

(338 - 385)

387

(370 - 403)

0.14

0.07

119

(102 - 138)

25

(21 - 30)

0.48**

0.34**

Rural

(n = 42)

33.2

(31.5 - 34.9)

355,983

(317,072 - 394,895)

0.44**

0.35**

361

(321 - 401)

408

(383 - 433)

0.31*

0.13

158

(124 - 201)

27

(20 - 36)

0.48**

0.25**

Men

(n = 120)

33.0

(32.1 - 33.9)

357,664

(332,497 - 382,832)

0.40**

0.33**

0.41**

390

(375 - 405)

0.08

0.03

167

(149 - 186)

33

(28 - 38)

0.37**

0.24**

Women

(n = 37)

30.2

(29.0 - 31.1)

284,857

(244,225 - 325,490)

0.28

0.30**

438

(392 - 484)

401

(368 - 433)

0.45*

0.20*

52

(41 - 68)

12

(8 - 17)

-0.01

0.06

  1. a Criterion validity data in the table is presented as: ρ = spearman rank correlation coefficient and kappa coefficient.
  2. b Physical activity characteristics presented in the table are means and 95% confidence intervals (CI), except for moderate/vigorous activity which is geometric mean and 95% CI.
  3. 1 Total activity (questionnaire = MET hr/day (excluding sleep); accelerometer = total counts per day). ρ and kappa compares total METs from the questionnaire with total counts from the Actigraph 7164 accelerometer.
  4. 2 Light activity (questionnaire = 1.5-3 METS; accelerometer = 100-1951 counts per minute)
  5. 3Moderate/vigorous physical activity (questionnaire = > 3 METs; accelerometer = > 1951 counts per minute)
  6. P-value for spearman rank and kappa coefficient is a test of independence between the two data measures. *P < 0.05; **P < 0.001