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Table 1 Baseline characteristics of PALS sub-cohort aged 18–60 years in 1981 who were retained for analysis, and all others (deceased, refused, lost to follow-up, unable to participate, or with missing data). Physical Activity Longitudinal Study 1981–2002/04.

From: Distinct trajectories of leisure time physical activity and predictors of trajectory class membership: a 22 year cohort study

 

Participants with complete data on LTPA

Participants deceased, refused, lost to follow-up, unable to participate, or with missing data for LTPA

SELECTED CHARACTERISTICS

(N = 884)

(N = 1574)

 

n (%) 1

n (%) 1

Male

390 (44.1)

740 (47.0)

1981 Age***

  

18–27

288 (32.6)

409 (26.0)

28–39

360 (40.7)

493 (31.3)

40–60

236 (26.7)

672 (42.7)

1988 Education***

  

Secondary incomplete

143 (16.2)

423 (31.5)

Secondary/Post-secondary

490 (55.6)

681 (50.8)

Completed University

249 (28.2)

238 (17.7)

1981 Household income**

  

Low (< $15 K)

138 (15.6)

279 (17.7)

Average($15–29 999)

340 (38.5)

501 (31.8)

High (≥ $30 K)

259 (29.3)

337 (21.4)

Missing

147 (16.6)

457 (29.1)

Degree of urbanization*

  

Large city

420 (47.9)

696 (54.1)

Other urban area

203 (23.2)

269 (20.9)

Rural area

253 (28.9)

322 (25.0)

1981 LTPA

  

Inactive (<1.5 kkd)

483 (54.6)

706 (59.3)

Moderately active (1.5 to <3.0 kkd)

196 (22.2)

224 (18.8)

Active (≥ 3 kkd)

205 (23.2)

260 (21.8)

1981 BMI

  

≤ 25

508 (67.3)

668 (63.1)

> 25

247 (32.7)

390 (36.9)

1981 Smoking status***

  

Current

318 (36.0)

769 (48.9)

Ex

182 (20.6)

381 (24.2)

Never

384 (43.4)

424 (26.9)

1981 Self-rated health***

  

Very Good/Excellent

612 (69.3)

941 (62.1)

Good/Fair/Poor

271 (30.7)

575 (37.9)

  1. 1. Percentages computed excluding missing data unless otherwise indicated
  2. *: p < 0.05, **: p < 0.01; ***: p < 0.001, for differences based on t-test or chi-square test with (# categories -1) degrees of freedom.
  3. LTPA = Leisure Time Physical Activity; kkd = kilocalories/kilogram/day