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Table 2 Adjusted means (95% CI) for WBC and platelet counts by leisure-time physical activity level in total population (N = 17,093)

From: Associations Between Leisure-Time Physical Activity Level and Peripheral Immune Cell Populations in the US General Population, Analysis of the National Health and Nutrition Examination Survey Data, 1999–2018

 

Leisure-time physical activity level, MET-hrs/wk

Ptrend

Quartile1 (n = 4892)

Quartile2 (n = 3799)

Quartile3 (n = 3967)

Quartile4 (n = 4435)

WBC count, 1000 cells/uL, mean (95% CI)

 Model 1a

7.04 (6.94, 7.14)

6.65 (6.55, 6.79)

6.61 (6.52, 6.70)

6.54 (6.45, 6.62)

 < 0.001

 Model 2b

7.38 (7.12, 7.64)

7.17 (6.91, 7.42)

7.12 (6.86, 7.37)

7.12 (6.86, 7.38)

 < 0.001

Neutrophil count, 1000 cells/uL, mean (95% CI)

 Model 1a

4.20 (4.11, 4.28)

3.92 (3.84, 4.00)

3.88 (3.80, 3.95)

3.82 (3.75, 3.89)

 < 0.001

 Model 2b

4.36 (4.15, 4.57)

4.20 (4.00, 4.40)

4.16 (3.95, 4.36)

4.15 (3.95, 4.36)

 < 0.001

Lymphocyte count, 1000 cells/uL, mean (95% CI)

 Model 1a

2.05 (2.02, 2.07)

1.97 (1.94,2.00)

1.97 (1.94, 1.99)

1.96 (1.93, 1.99)

0.002

 Model 2b

2.21 (2.13, 2.29)

2.18 (2.10, 2.26)

2.17 (2.09, 2.26)

2.18 (2.10, 2.27)

0.37

Monocyte count, 1000 cells/uL, mean (95% CI)

 Model 1a

0.55 (0.54, 0.56)

0.53 (0.51, 0.54)

0.53 (0.52, 0.54)

0.52 (0.51, 0.53)

 < 0.001

 Model 2b

0.56 (0.54, 0.59)

0.55 (0.52, 0.57)

0.55 (0.53, 0.57)

0.54 (0.52, 0.57)

0.007

Platelet count, 1000 cells/uL, mean (95% CI)

 Model 1a

259.42 (256.58, 262.26)

253.58 (250.33, 256.83)

254.80 (251.85, 257.75)

252.81 (250.17, 255.45)

0.016

 Model 2b

260.88 (254.93, 266.82)

257.35 (251.20, 263.50)

258.05 (252.11, 264.00)

256.96 (251.05, 262.88)

0.11

  1. WBC White blood cell, MET Metabolic equivalent of task, CI Confidence interval
  2. aAdjusted for age, gender, and survey year
  3. bAdjusted for age, gender, survey year, BMI, race/ethnicity, family income, education level, marital status, smoking status, alcohol intake, daily energy intake, time of the blood draw, and history of arthritis